Active coatings based on hydroxypropyl methylcellulose and silver nanoparticles to extend the papaya (Carica papaya L.) shelf life
This study aimed to understand the effect of silver nanoparticles (AgNPs) on physiochemical properties of hydroxypropyl methylcellulose (HPMC) film-forming solutions (FFS) and nanocomposite films (NCF), as well as the efficacy of these materials to control the development of anthracnose caused by Co...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Vieira, Ana Carolina Flôr [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2020transfer abstract |
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| Umfang: |
10 |
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| Übergeordnetes Werk: |
Enthalten in: Automated DNA hybridization transfer with movable super-paramagnetic microbeads in a microflow reactor - Penchovsky, Robert ELSEVIER, 2019, structure, function and interactions, New York, NY [u.a.] |
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| Übergeordnetes Werk: |
volume:164 ; year:2020 ; day:1 ; month:12 ; pages:489-498 ; extent:10 |
| Links: |
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| DOI / URN: |
10.1016/j.ijbiomac.2020.07.130 |
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ELV051937875 |
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| 520 | |a This study aimed to understand the effect of silver nanoparticles (AgNPs) on physiochemical properties of hydroxypropyl methylcellulose (HPMC) film-forming solutions (FFS) and nanocomposite films (NCF), as well as the efficacy of these materials to control the development of anthracnose caused by Colletotrichum gloeosporioides in papaya (Carica papaya L.). FFS were characterized by pH, particle size distribution, and rheology. In addition, thickness, morphology, water contact angle, barrier, chemical, crystallinity, thermal, and mechanical properties from NCF were investigated. The minimum inhibitory concentration of AgNPs against C. gloeosporioides was determined by in vitro test. FFS with 0.25 wt% of AgNPs were used as coatings in papayas inoculated with C. gloeosporioides. Finally, the physicochemical parameters were investigated during their storing up to 7 days at 10 °C, followed by 7 days at 20 °C. The presence of AgNPs impacted the thickness, morphology, moisture content, chemical bonds, crystalline structure, and thermal properties of films. Coatings with 0.25 wt% of AgNPs reduced the incidence and severity of C. gloeosporioides and avoided the weight loss of papayas during storing. The ripening of papaya occurred naturally, showing that the coating only delayed this process. Thus, HPMC-AgNPs coating can be an alternative to extend the papaya shelf life. | ||
| 520 | |a This study aimed to understand the effect of silver nanoparticles (AgNPs) on physiochemical properties of hydroxypropyl methylcellulose (HPMC) film-forming solutions (FFS) and nanocomposite films (NCF), as well as the efficacy of these materials to control the development of anthracnose caused by Colletotrichum gloeosporioides in papaya (Carica papaya L.). FFS were characterized by pH, particle size distribution, and rheology. In addition, thickness, morphology, water contact angle, barrier, chemical, crystallinity, thermal, and mechanical properties from NCF were investigated. The minimum inhibitory concentration of AgNPs against C. gloeosporioides was determined by in vitro test. FFS with 0.25 wt% of AgNPs were used as coatings in papayas inoculated with C. gloeosporioides. Finally, the physicochemical parameters were investigated during their storing up to 7 days at 10 °C, followed by 7 days at 20 °C. The presence of AgNPs impacted the thickness, morphology, moisture content, chemical bonds, crystalline structure, and thermal properties of films. Coatings with 0.25 wt% of AgNPs reduced the incidence and severity of C. gloeosporioides and avoided the weight loss of papayas during storing. The ripening of papaya occurred naturally, showing that the coating only delayed this process. Thus, HPMC-AgNPs coating can be an alternative to extend the papaya shelf life. | ||
| 700 | 1 | |a de Matos Fonseca, Jéssica |4 oth | |
| 700 | 1 | |a Menezes, Natielle Maria Costa |4 oth | |
| 700 | 1 | |a Monteiro, Alcilene Rodrigues |4 oth | |
| 700 | 1 | |a Valencia, Germán Ayala |4 oth | |
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10.1016/j.ijbiomac.2020.07.130 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001208.pica (DE-627)ELV051937875 (ELSEVIER)S0141-8130(20)33885-X DE-627 ger DE-627 rakwb eng 570 610 VZ 58.30 bkl 50.22 bkl 44.09 bkl Vieira, Ana Carolina Flôr verfasserin aut Active coatings based on hydroxypropyl methylcellulose and silver nanoparticles to extend the papaya (Carica papaya L.) shelf life 2020transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier This study aimed to understand the effect of silver nanoparticles (AgNPs) on physiochemical properties of hydroxypropyl methylcellulose (HPMC) film-forming solutions (FFS) and nanocomposite films (NCF), as well as the efficacy of these materials to control the development of anthracnose caused by Colletotrichum gloeosporioides in papaya (Carica papaya L.). FFS were characterized by pH, particle size distribution, and rheology. In addition, thickness, morphology, water contact angle, barrier, chemical, crystallinity, thermal, and mechanical properties from NCF were investigated. The minimum inhibitory concentration of AgNPs against C. gloeosporioides was determined by in vitro test. FFS with 0.25 wt% of AgNPs were used as coatings in papayas inoculated with C. gloeosporioides. Finally, the physicochemical parameters were investigated during their storing up to 7 days at 10 °C, followed by 7 days at 20 °C. The presence of AgNPs impacted the thickness, morphology, moisture content, chemical bonds, crystalline structure, and thermal properties of films. Coatings with 0.25 wt% of AgNPs reduced the incidence and severity of C. gloeosporioides and avoided the weight loss of papayas during storing. The ripening of papaya occurred naturally, showing that the coating only delayed this process. Thus, HPMC-AgNPs coating can be an alternative to extend the papaya shelf life. This study aimed to understand the effect of silver nanoparticles (AgNPs) on physiochemical properties of hydroxypropyl methylcellulose (HPMC) film-forming solutions (FFS) and nanocomposite films (NCF), as well as the efficacy of these materials to control the development of anthracnose caused by Colletotrichum gloeosporioides in papaya (Carica papaya L.). FFS were characterized by pH, particle size distribution, and rheology. In addition, thickness, morphology, water contact angle, barrier, chemical, crystallinity, thermal, and mechanical properties from NCF were investigated. The minimum inhibitory concentration of AgNPs against C. gloeosporioides was determined by in vitro test. FFS with 0.25 wt% of AgNPs were used as coatings in papayas inoculated with C. gloeosporioides. Finally, the physicochemical parameters were investigated during their storing up to 7 days at 10 °C, followed by 7 days at 20 °C. The presence of AgNPs impacted the thickness, morphology, moisture content, chemical bonds, crystalline structure, and thermal properties of films. Coatings with 0.25 wt% of AgNPs reduced the incidence and severity of C. gloeosporioides and avoided the weight loss of papayas during storing. The ripening of papaya occurred naturally, showing that the coating only delayed this process. Thus, HPMC-AgNPs coating can be an alternative to extend the papaya shelf life. de Matos Fonseca, Jéssica oth Menezes, Natielle Maria Costa oth Monteiro, Alcilene Rodrigues oth Valencia, Germán Ayala oth Enthalten in Elsevier Penchovsky, Robert ELSEVIER Automated DNA hybridization transfer with movable super-paramagnetic microbeads in a microflow reactor 2019 structure, function and interactions New York, NY [u.a.] (DE-627)ELV002200198 volume:164 year:2020 day:1 month:12 pages:489-498 extent:10 https://doi.org/10.1016/j.ijbiomac.2020.07.130 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 58.30 Biotechnologie VZ 50.22 Sensorik VZ 44.09 Medizintechnik VZ AR 164 2020 1 1201 489-498 10 |
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10.1016/j.ijbiomac.2020.07.130 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001208.pica (DE-627)ELV051937875 (ELSEVIER)S0141-8130(20)33885-X DE-627 ger DE-627 rakwb eng 570 610 VZ 58.30 bkl 50.22 bkl 44.09 bkl Vieira, Ana Carolina Flôr verfasserin aut Active coatings based on hydroxypropyl methylcellulose and silver nanoparticles to extend the papaya (Carica papaya L.) shelf life 2020transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier This study aimed to understand the effect of silver nanoparticles (AgNPs) on physiochemical properties of hydroxypropyl methylcellulose (HPMC) film-forming solutions (FFS) and nanocomposite films (NCF), as well as the efficacy of these materials to control the development of anthracnose caused by Colletotrichum gloeosporioides in papaya (Carica papaya L.). FFS were characterized by pH, particle size distribution, and rheology. In addition, thickness, morphology, water contact angle, barrier, chemical, crystallinity, thermal, and mechanical properties from NCF were investigated. The minimum inhibitory concentration of AgNPs against C. gloeosporioides was determined by in vitro test. FFS with 0.25 wt% of AgNPs were used as coatings in papayas inoculated with C. gloeosporioides. Finally, the physicochemical parameters were investigated during their storing up to 7 days at 10 °C, followed by 7 days at 20 °C. The presence of AgNPs impacted the thickness, morphology, moisture content, chemical bonds, crystalline structure, and thermal properties of films. Coatings with 0.25 wt% of AgNPs reduced the incidence and severity of C. gloeosporioides and avoided the weight loss of papayas during storing. The ripening of papaya occurred naturally, showing that the coating only delayed this process. Thus, HPMC-AgNPs coating can be an alternative to extend the papaya shelf life. This study aimed to understand the effect of silver nanoparticles (AgNPs) on physiochemical properties of hydroxypropyl methylcellulose (HPMC) film-forming solutions (FFS) and nanocomposite films (NCF), as well as the efficacy of these materials to control the development of anthracnose caused by Colletotrichum gloeosporioides in papaya (Carica papaya L.). FFS were characterized by pH, particle size distribution, and rheology. In addition, thickness, morphology, water contact angle, barrier, chemical, crystallinity, thermal, and mechanical properties from NCF were investigated. The minimum inhibitory concentration of AgNPs against C. gloeosporioides was determined by in vitro test. FFS with 0.25 wt% of AgNPs were used as coatings in papayas inoculated with C. gloeosporioides. Finally, the physicochemical parameters were investigated during their storing up to 7 days at 10 °C, followed by 7 days at 20 °C. The presence of AgNPs impacted the thickness, morphology, moisture content, chemical bonds, crystalline structure, and thermal properties of films. Coatings with 0.25 wt% of AgNPs reduced the incidence and severity of C. gloeosporioides and avoided the weight loss of papayas during storing. The ripening of papaya occurred naturally, showing that the coating only delayed this process. Thus, HPMC-AgNPs coating can be an alternative to extend the papaya shelf life. de Matos Fonseca, Jéssica oth Menezes, Natielle Maria Costa oth Monteiro, Alcilene Rodrigues oth Valencia, Germán Ayala oth Enthalten in Elsevier Penchovsky, Robert ELSEVIER Automated DNA hybridization transfer with movable super-paramagnetic microbeads in a microflow reactor 2019 structure, function and interactions New York, NY [u.a.] (DE-627)ELV002200198 volume:164 year:2020 day:1 month:12 pages:489-498 extent:10 https://doi.org/10.1016/j.ijbiomac.2020.07.130 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 58.30 Biotechnologie VZ 50.22 Sensorik VZ 44.09 Medizintechnik VZ AR 164 2020 1 1201 489-498 10 |
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10.1016/j.ijbiomac.2020.07.130 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001208.pica (DE-627)ELV051937875 (ELSEVIER)S0141-8130(20)33885-X DE-627 ger DE-627 rakwb eng 570 610 VZ 58.30 bkl 50.22 bkl 44.09 bkl Vieira, Ana Carolina Flôr verfasserin aut Active coatings based on hydroxypropyl methylcellulose and silver nanoparticles to extend the papaya (Carica papaya L.) shelf life 2020transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier This study aimed to understand the effect of silver nanoparticles (AgNPs) on physiochemical properties of hydroxypropyl methylcellulose (HPMC) film-forming solutions (FFS) and nanocomposite films (NCF), as well as the efficacy of these materials to control the development of anthracnose caused by Colletotrichum gloeosporioides in papaya (Carica papaya L.). FFS were characterized by pH, particle size distribution, and rheology. In addition, thickness, morphology, water contact angle, barrier, chemical, crystallinity, thermal, and mechanical properties from NCF were investigated. The minimum inhibitory concentration of AgNPs against C. gloeosporioides was determined by in vitro test. FFS with 0.25 wt% of AgNPs were used as coatings in papayas inoculated with C. gloeosporioides. Finally, the physicochemical parameters were investigated during their storing up to 7 days at 10 °C, followed by 7 days at 20 °C. The presence of AgNPs impacted the thickness, morphology, moisture content, chemical bonds, crystalline structure, and thermal properties of films. Coatings with 0.25 wt% of AgNPs reduced the incidence and severity of C. gloeosporioides and avoided the weight loss of papayas during storing. The ripening of papaya occurred naturally, showing that the coating only delayed this process. Thus, HPMC-AgNPs coating can be an alternative to extend the papaya shelf life. This study aimed to understand the effect of silver nanoparticles (AgNPs) on physiochemical properties of hydroxypropyl methylcellulose (HPMC) film-forming solutions (FFS) and nanocomposite films (NCF), as well as the efficacy of these materials to control the development of anthracnose caused by Colletotrichum gloeosporioides in papaya (Carica papaya L.). FFS were characterized by pH, particle size distribution, and rheology. In addition, thickness, morphology, water contact angle, barrier, chemical, crystallinity, thermal, and mechanical properties from NCF were investigated. The minimum inhibitory concentration of AgNPs against C. gloeosporioides was determined by in vitro test. FFS with 0.25 wt% of AgNPs were used as coatings in papayas inoculated with C. gloeosporioides. Finally, the physicochemical parameters were investigated during their storing up to 7 days at 10 °C, followed by 7 days at 20 °C. The presence of AgNPs impacted the thickness, morphology, moisture content, chemical bonds, crystalline structure, and thermal properties of films. Coatings with 0.25 wt% of AgNPs reduced the incidence and severity of C. gloeosporioides and avoided the weight loss of papayas during storing. The ripening of papaya occurred naturally, showing that the coating only delayed this process. Thus, HPMC-AgNPs coating can be an alternative to extend the papaya shelf life. de Matos Fonseca, Jéssica oth Menezes, Natielle Maria Costa oth Monteiro, Alcilene Rodrigues oth Valencia, Germán Ayala oth Enthalten in Elsevier Penchovsky, Robert ELSEVIER Automated DNA hybridization transfer with movable super-paramagnetic microbeads in a microflow reactor 2019 structure, function and interactions New York, NY [u.a.] (DE-627)ELV002200198 volume:164 year:2020 day:1 month:12 pages:489-498 extent:10 https://doi.org/10.1016/j.ijbiomac.2020.07.130 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 58.30 Biotechnologie VZ 50.22 Sensorik VZ 44.09 Medizintechnik VZ AR 164 2020 1 1201 489-498 10 |
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10.1016/j.ijbiomac.2020.07.130 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001208.pica (DE-627)ELV051937875 (ELSEVIER)S0141-8130(20)33885-X DE-627 ger DE-627 rakwb eng 570 610 VZ 58.30 bkl 50.22 bkl 44.09 bkl Vieira, Ana Carolina Flôr verfasserin aut Active coatings based on hydroxypropyl methylcellulose and silver nanoparticles to extend the papaya (Carica papaya L.) shelf life 2020transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier This study aimed to understand the effect of silver nanoparticles (AgNPs) on physiochemical properties of hydroxypropyl methylcellulose (HPMC) film-forming solutions (FFS) and nanocomposite films (NCF), as well as the efficacy of these materials to control the development of anthracnose caused by Colletotrichum gloeosporioides in papaya (Carica papaya L.). FFS were characterized by pH, particle size distribution, and rheology. In addition, thickness, morphology, water contact angle, barrier, chemical, crystallinity, thermal, and mechanical properties from NCF were investigated. The minimum inhibitory concentration of AgNPs against C. gloeosporioides was determined by in vitro test. FFS with 0.25 wt% of AgNPs were used as coatings in papayas inoculated with C. gloeosporioides. Finally, the physicochemical parameters were investigated during their storing up to 7 days at 10 °C, followed by 7 days at 20 °C. The presence of AgNPs impacted the thickness, morphology, moisture content, chemical bonds, crystalline structure, and thermal properties of films. Coatings with 0.25 wt% of AgNPs reduced the incidence and severity of C. gloeosporioides and avoided the weight loss of papayas during storing. The ripening of papaya occurred naturally, showing that the coating only delayed this process. Thus, HPMC-AgNPs coating can be an alternative to extend the papaya shelf life. This study aimed to understand the effect of silver nanoparticles (AgNPs) on physiochemical properties of hydroxypropyl methylcellulose (HPMC) film-forming solutions (FFS) and nanocomposite films (NCF), as well as the efficacy of these materials to control the development of anthracnose caused by Colletotrichum gloeosporioides in papaya (Carica papaya L.). FFS were characterized by pH, particle size distribution, and rheology. In addition, thickness, morphology, water contact angle, barrier, chemical, crystallinity, thermal, and mechanical properties from NCF were investigated. The minimum inhibitory concentration of AgNPs against C. gloeosporioides was determined by in vitro test. FFS with 0.25 wt% of AgNPs were used as coatings in papayas inoculated with C. gloeosporioides. Finally, the physicochemical parameters were investigated during their storing up to 7 days at 10 °C, followed by 7 days at 20 °C. The presence of AgNPs impacted the thickness, morphology, moisture content, chemical bonds, crystalline structure, and thermal properties of films. Coatings with 0.25 wt% of AgNPs reduced the incidence and severity of C. gloeosporioides and avoided the weight loss of papayas during storing. The ripening of papaya occurred naturally, showing that the coating only delayed this process. Thus, HPMC-AgNPs coating can be an alternative to extend the papaya shelf life. de Matos Fonseca, Jéssica oth Menezes, Natielle Maria Costa oth Monteiro, Alcilene Rodrigues oth Valencia, Germán Ayala oth Enthalten in Elsevier Penchovsky, Robert ELSEVIER Automated DNA hybridization transfer with movable super-paramagnetic microbeads in a microflow reactor 2019 structure, function and interactions New York, NY [u.a.] (DE-627)ELV002200198 volume:164 year:2020 day:1 month:12 pages:489-498 extent:10 https://doi.org/10.1016/j.ijbiomac.2020.07.130 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 58.30 Biotechnologie VZ 50.22 Sensorik VZ 44.09 Medizintechnik VZ AR 164 2020 1 1201 489-498 10 |
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10.1016/j.ijbiomac.2020.07.130 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001208.pica (DE-627)ELV051937875 (ELSEVIER)S0141-8130(20)33885-X DE-627 ger DE-627 rakwb eng 570 610 VZ 58.30 bkl 50.22 bkl 44.09 bkl Vieira, Ana Carolina Flôr verfasserin aut Active coatings based on hydroxypropyl methylcellulose and silver nanoparticles to extend the papaya (Carica papaya L.) shelf life 2020transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier This study aimed to understand the effect of silver nanoparticles (AgNPs) on physiochemical properties of hydroxypropyl methylcellulose (HPMC) film-forming solutions (FFS) and nanocomposite films (NCF), as well as the efficacy of these materials to control the development of anthracnose caused by Colletotrichum gloeosporioides in papaya (Carica papaya L.). FFS were characterized by pH, particle size distribution, and rheology. In addition, thickness, morphology, water contact angle, barrier, chemical, crystallinity, thermal, and mechanical properties from NCF were investigated. The minimum inhibitory concentration of AgNPs against C. gloeosporioides was determined by in vitro test. FFS with 0.25 wt% of AgNPs were used as coatings in papayas inoculated with C. gloeosporioides. Finally, the physicochemical parameters were investigated during their storing up to 7 days at 10 °C, followed by 7 days at 20 °C. The presence of AgNPs impacted the thickness, morphology, moisture content, chemical bonds, crystalline structure, and thermal properties of films. Coatings with 0.25 wt% of AgNPs reduced the incidence and severity of C. gloeosporioides and avoided the weight loss of papayas during storing. The ripening of papaya occurred naturally, showing that the coating only delayed this process. Thus, HPMC-AgNPs coating can be an alternative to extend the papaya shelf life. This study aimed to understand the effect of silver nanoparticles (AgNPs) on physiochemical properties of hydroxypropyl methylcellulose (HPMC) film-forming solutions (FFS) and nanocomposite films (NCF), as well as the efficacy of these materials to control the development of anthracnose caused by Colletotrichum gloeosporioides in papaya (Carica papaya L.). FFS were characterized by pH, particle size distribution, and rheology. In addition, thickness, morphology, water contact angle, barrier, chemical, crystallinity, thermal, and mechanical properties from NCF were investigated. The minimum inhibitory concentration of AgNPs against C. gloeosporioides was determined by in vitro test. FFS with 0.25 wt% of AgNPs were used as coatings in papayas inoculated with C. gloeosporioides. Finally, the physicochemical parameters were investigated during their storing up to 7 days at 10 °C, followed by 7 days at 20 °C. The presence of AgNPs impacted the thickness, morphology, moisture content, chemical bonds, crystalline structure, and thermal properties of films. Coatings with 0.25 wt% of AgNPs reduced the incidence and severity of C. gloeosporioides and avoided the weight loss of papayas during storing. The ripening of papaya occurred naturally, showing that the coating only delayed this process. Thus, HPMC-AgNPs coating can be an alternative to extend the papaya shelf life. de Matos Fonseca, Jéssica oth Menezes, Natielle Maria Costa oth Monteiro, Alcilene Rodrigues oth Valencia, Germán Ayala oth Enthalten in Elsevier Penchovsky, Robert ELSEVIER Automated DNA hybridization transfer with movable super-paramagnetic microbeads in a microflow reactor 2019 structure, function and interactions New York, NY [u.a.] (DE-627)ELV002200198 volume:164 year:2020 day:1 month:12 pages:489-498 extent:10 https://doi.org/10.1016/j.ijbiomac.2020.07.130 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 58.30 Biotechnologie VZ 50.22 Sensorik VZ 44.09 Medizintechnik VZ AR 164 2020 1 1201 489-498 10 |
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Active coatings based on hydroxypropyl methylcellulose and silver nanoparticles to extend the papaya (Carica papaya L.) shelf life |
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This study aimed to understand the effect of silver nanoparticles (AgNPs) on physiochemical properties of hydroxypropyl methylcellulose (HPMC) film-forming solutions (FFS) and nanocomposite films (NCF), as well as the efficacy of these materials to control the development of anthracnose caused by Colletotrichum gloeosporioides in papaya (Carica papaya L.). FFS were characterized by pH, particle size distribution, and rheology. In addition, thickness, morphology, water contact angle, barrier, chemical, crystallinity, thermal, and mechanical properties from NCF were investigated. The minimum inhibitory concentration of AgNPs against C. gloeosporioides was determined by in vitro test. FFS with 0.25 wt% of AgNPs were used as coatings in papayas inoculated with C. gloeosporioides. Finally, the physicochemical parameters were investigated during their storing up to 7 days at 10 °C, followed by 7 days at 20 °C. The presence of AgNPs impacted the thickness, morphology, moisture content, chemical bonds, crystalline structure, and thermal properties of films. Coatings with 0.25 wt% of AgNPs reduced the incidence and severity of C. gloeosporioides and avoided the weight loss of papayas during storing. The ripening of papaya occurred naturally, showing that the coating only delayed this process. Thus, HPMC-AgNPs coating can be an alternative to extend the papaya shelf life. |
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This study aimed to understand the effect of silver nanoparticles (AgNPs) on physiochemical properties of hydroxypropyl methylcellulose (HPMC) film-forming solutions (FFS) and nanocomposite films (NCF), as well as the efficacy of these materials to control the development of anthracnose caused by Colletotrichum gloeosporioides in papaya (Carica papaya L.). FFS were characterized by pH, particle size distribution, and rheology. In addition, thickness, morphology, water contact angle, barrier, chemical, crystallinity, thermal, and mechanical properties from NCF were investigated. The minimum inhibitory concentration of AgNPs against C. gloeosporioides was determined by in vitro test. FFS with 0.25 wt% of AgNPs were used as coatings in papayas inoculated with C. gloeosporioides. Finally, the physicochemical parameters were investigated during their storing up to 7 days at 10 °C, followed by 7 days at 20 °C. The presence of AgNPs impacted the thickness, morphology, moisture content, chemical bonds, crystalline structure, and thermal properties of films. Coatings with 0.25 wt% of AgNPs reduced the incidence and severity of C. gloeosporioides and avoided the weight loss of papayas during storing. The ripening of papaya occurred naturally, showing that the coating only delayed this process. Thus, HPMC-AgNPs coating can be an alternative to extend the papaya shelf life. |
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This study aimed to understand the effect of silver nanoparticles (AgNPs) on physiochemical properties of hydroxypropyl methylcellulose (HPMC) film-forming solutions (FFS) and nanocomposite films (NCF), as well as the efficacy of these materials to control the development of anthracnose caused by Colletotrichum gloeosporioides in papaya (Carica papaya L.). FFS were characterized by pH, particle size distribution, and rheology. In addition, thickness, morphology, water contact angle, barrier, chemical, crystallinity, thermal, and mechanical properties from NCF were investigated. The minimum inhibitory concentration of AgNPs against C. gloeosporioides was determined by in vitro test. FFS with 0.25 wt% of AgNPs were used as coatings in papayas inoculated with C. gloeosporioides. Finally, the physicochemical parameters were investigated during their storing up to 7 days at 10 °C, followed by 7 days at 20 °C. The presence of AgNPs impacted the thickness, morphology, moisture content, chemical bonds, crystalline structure, and thermal properties of films. Coatings with 0.25 wt% of AgNPs reduced the incidence and severity of C. gloeosporioides and avoided the weight loss of papayas during storing. The ripening of papaya occurred naturally, showing that the coating only delayed this process. Thus, HPMC-AgNPs coating can be an alternative to extend the papaya shelf life. |
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