A novel low pH fermentation process for the production of acetate and propylene glycol from carbohydrate wastes

A novel low pH fermentation process was studied for the conversion of lactose using Lactobacillus plantarum and Lactobacillus buchneri under anoxic conditions in single co-culture, and two-stage sequential fermentations. This is aimed at producing acetate and propylene glycol (PG) as environmentally...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Veeravalli, Sathyanarayanan S. [verfasserIn] Mathews, Alexander P. [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2018

Schlagwörter:	Immobilized fermentation Lactose degradation Deicers

Übergeordnetes Werk:	Enthalten in: Enzyme and microbial technology - Amsterdam [u.a.] : Elsevier Science, 1979, 120, Seite 8-15
Übergeordnetes Werk:	volume:120 ; pages:8-15

DOI / URN:	10.1016/j.enzmictec.2018.09.006

Katalog-ID:	ELV001029827

Internformat


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245	1	0	\|a A novel low pH fermentation process for the production of acetate and propylene glycol from carbohydrate wastes
264		1	\|c 2018
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337			\|a Computermedien \|b c \|2 rdamedia
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520			\|a A novel low pH fermentation process was studied for the conversion of lactose using Lactobacillus plantarum and Lactobacillus buchneri under anoxic conditions in single co-culture, and two-stage sequential fermentations. This is aimed at producing acetate and propylene glycol (PG) as environmentally benign substitutes for currently used road and aircraft deicing chemicals. The results indicate that in the case of two-stage fermentation with immobilized L. buchneri in the second stage, lactose degradation rate increased markedly producing acetate and PG concentrations of 12.1 and 10.7 g L−1 at pH 3.8. In the case of coculture fermentation, the acetate and PG concentrations were 8.2 and 6.8 g L−1, respectively. Fermentation of lactose and whey powder was conducted at pH 4.25 using a high cell density culture of L. buchneri. The acetate and PG yields were similar for both substrates at ∼0.3 g/g and ∼0.33 g/g respectively. With a starting lactose concentration of 60 g/L, acetate and PG concentrations of 18 g/L and 21 g/L respectively were obtained. The low pH conversion of wastes to value-added products under anoxic conditions provides substantial operating benefits over neutral pH fermentations that require strict anaerobic conditions for effective operation. Moreover, the low product pH at around 4.0 will provide substantial savings in downstream processing costs due to the much higher extraction efficiency of weak- and moderate- base resins for acetic acid compared to acetate ion.
650		4	\|a Immobilized fermentation
650		4	\|a Lactose degradation
650		4	\|a Deicers
700	1		\|a Mathews, Alexander P. \|e verfasserin \|0 (orcid)0000-0002-7133-904X \|4 aut
773	0	8	\|i Enthalten in \|t Enzyme and microbial technology \|d Amsterdam [u.a.] : Elsevier Science, 1979 \|g 120, Seite 8-15 \|h Online-Ressource \|w (DE-627)306582031 \|w (DE-600)1497704-7 \|w (DE-576)094139687 \|x 1879-0909 \|7 nnns
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912			\|a GBV_ILN_60
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912			\|a GBV_ILN_63
912			\|a GBV_ILN_65
912			\|a GBV_ILN_69
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912			\|a GBV_ILN_73
912			\|a GBV_ILN_74
912			\|a GBV_ILN_90
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912			\|a GBV_ILN_2014
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912			\|a GBV_ILN_2020
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912			\|a GBV_ILN_2048
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912			\|a GBV_ILN_2059
912			\|a GBV_ILN_2061
912			\|a GBV_ILN_2064
912			\|a GBV_ILN_2065
912			\|a GBV_ILN_2068
912			\|a GBV_ILN_2111
912			\|a GBV_ILN_2112
912			\|a GBV_ILN_2113
912			\|a GBV_ILN_2118
912			\|a GBV_ILN_2122
912			\|a GBV_ILN_2129
912			\|a GBV_ILN_2143
912			\|a GBV_ILN_2147
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912			\|a GBV_ILN_2152
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912			\|a GBV_ILN_2507
912			\|a GBV_ILN_2522
912			\|a GBV_ILN_4035
912			\|a GBV_ILN_4037
912			\|a GBV_ILN_4112
912			\|a GBV_ILN_4125
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912			\|a GBV_ILN_4326
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912			\|a GBV_ILN_4335
912			\|a GBV_ILN_4338
912			\|a GBV_ILN_4393
936	b	k	\|a 42.30 \|j Mikrobiologie
936	b	k	\|a 58.30 \|j Biotechnologie
951			\|a AR
952			\|d 120 \|h 8-15

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matchkey_str	article:18790909:2018----::nvlopfrettopoesoterdcinfcttadrplng
hierarchy_sort_str	2018
bklnumber	42.30 58.30
publishDate	2018
allfields	10.1016/j.enzmictec.2018.09.006 doi (DE-627)ELV001029827 (ELSEVIER)S0141-0229(18)30515-5 DE-627 ger DE-627 rda eng 610 DE-600 42.30 bkl 58.30 bkl Veeravalli, Sathyanarayanan S. verfasserin aut A novel low pH fermentation process for the production of acetate and propylene glycol from carbohydrate wastes 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A novel low pH fermentation process was studied for the conversion of lactose using Lactobacillus plantarum and Lactobacillus buchneri under anoxic conditions in single co-culture, and two-stage sequential fermentations. This is aimed at producing acetate and propylene glycol (PG) as environmentally benign substitutes for currently used road and aircraft deicing chemicals. The results indicate that in the case of two-stage fermentation with immobilized L. buchneri in the second stage, lactose degradation rate increased markedly producing acetate and PG concentrations of 12.1 and 10.7 g L−1 at pH 3.8. In the case of coculture fermentation, the acetate and PG concentrations were 8.2 and 6.8 g L−1, respectively. Fermentation of lactose and whey powder was conducted at pH 4.25 using a high cell density culture of L. buchneri. The acetate and PG yields were similar for both substrates at ∼0.3 g/g and ∼0.33 g/g respectively. With a starting lactose concentration of 60 g/L, acetate and PG concentrations of 18 g/L and 21 g/L respectively were obtained. The low pH conversion of wastes to value-added products under anoxic conditions provides substantial operating benefits over neutral pH fermentations that require strict anaerobic conditions for effective operation. Moreover, the low product pH at around 4.0 will provide substantial savings in downstream processing costs due to the much higher extraction efficiency of weak- and moderate- base resins for acetic acid compared to acetate ion. Immobilized fermentation Lactose degradation Deicers Mathews, Alexander P. verfasserin (orcid)0000-0002-7133-904X aut Enthalten in Enzyme and microbial technology Amsterdam [u.a.] : Elsevier Science, 1979 120, Seite 8-15 Online-Ressource (DE-627)306582031 (DE-600)1497704-7 (DE-576)094139687 1879-0909 nnns volume:120 pages:8-15 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 42.30 Mikrobiologie 58.30 Biotechnologie AR 120 8-15
spelling	10.1016/j.enzmictec.2018.09.006 doi (DE-627)ELV001029827 (ELSEVIER)S0141-0229(18)30515-5 DE-627 ger DE-627 rda eng 610 DE-600 42.30 bkl 58.30 bkl Veeravalli, Sathyanarayanan S. verfasserin aut A novel low pH fermentation process for the production of acetate and propylene glycol from carbohydrate wastes 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A novel low pH fermentation process was studied for the conversion of lactose using Lactobacillus plantarum and Lactobacillus buchneri under anoxic conditions in single co-culture, and two-stage sequential fermentations. This is aimed at producing acetate and propylene glycol (PG) as environmentally benign substitutes for currently used road and aircraft deicing chemicals. The results indicate that in the case of two-stage fermentation with immobilized L. buchneri in the second stage, lactose degradation rate increased markedly producing acetate and PG concentrations of 12.1 and 10.7 g L−1 at pH 3.8. In the case of coculture fermentation, the acetate and PG concentrations were 8.2 and 6.8 g L−1, respectively. Fermentation of lactose and whey powder was conducted at pH 4.25 using a high cell density culture of L. buchneri. The acetate and PG yields were similar for both substrates at ∼0.3 g/g and ∼0.33 g/g respectively. With a starting lactose concentration of 60 g/L, acetate and PG concentrations of 18 g/L and 21 g/L respectively were obtained. The low pH conversion of wastes to value-added products under anoxic conditions provides substantial operating benefits over neutral pH fermentations that require strict anaerobic conditions for effective operation. Moreover, the low product pH at around 4.0 will provide substantial savings in downstream processing costs due to the much higher extraction efficiency of weak- and moderate- base resins for acetic acid compared to acetate ion. Immobilized fermentation Lactose degradation Deicers Mathews, Alexander P. verfasserin (orcid)0000-0002-7133-904X aut Enthalten in Enzyme and microbial technology Amsterdam [u.a.] : Elsevier Science, 1979 120, Seite 8-15 Online-Ressource (DE-627)306582031 (DE-600)1497704-7 (DE-576)094139687 1879-0909 nnns volume:120 pages:8-15 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 42.30 Mikrobiologie 58.30 Biotechnologie AR 120 8-15
allfields_unstemmed	10.1016/j.enzmictec.2018.09.006 doi (DE-627)ELV001029827 (ELSEVIER)S0141-0229(18)30515-5 DE-627 ger DE-627 rda eng 610 DE-600 42.30 bkl 58.30 bkl Veeravalli, Sathyanarayanan S. verfasserin aut A novel low pH fermentation process for the production of acetate and propylene glycol from carbohydrate wastes 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A novel low pH fermentation process was studied for the conversion of lactose using Lactobacillus plantarum and Lactobacillus buchneri under anoxic conditions in single co-culture, and two-stage sequential fermentations. This is aimed at producing acetate and propylene glycol (PG) as environmentally benign substitutes for currently used road and aircraft deicing chemicals. The results indicate that in the case of two-stage fermentation with immobilized L. buchneri in the second stage, lactose degradation rate increased markedly producing acetate and PG concentrations of 12.1 and 10.7 g L−1 at pH 3.8. In the case of coculture fermentation, the acetate and PG concentrations were 8.2 and 6.8 g L−1, respectively. Fermentation of lactose and whey powder was conducted at pH 4.25 using a high cell density culture of L. buchneri. The acetate and PG yields were similar for both substrates at ∼0.3 g/g and ∼0.33 g/g respectively. With a starting lactose concentration of 60 g/L, acetate and PG concentrations of 18 g/L and 21 g/L respectively were obtained. The low pH conversion of wastes to value-added products under anoxic conditions provides substantial operating benefits over neutral pH fermentations that require strict anaerobic conditions for effective operation. Moreover, the low product pH at around 4.0 will provide substantial savings in downstream processing costs due to the much higher extraction efficiency of weak- and moderate- base resins for acetic acid compared to acetate ion. Immobilized fermentation Lactose degradation Deicers Mathews, Alexander P. verfasserin (orcid)0000-0002-7133-904X aut Enthalten in Enzyme and microbial technology Amsterdam [u.a.] : Elsevier Science, 1979 120, Seite 8-15 Online-Ressource (DE-627)306582031 (DE-600)1497704-7 (DE-576)094139687 1879-0909 nnns volume:120 pages:8-15 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 42.30 Mikrobiologie 58.30 Biotechnologie AR 120 8-15
allfieldsGer	10.1016/j.enzmictec.2018.09.006 doi (DE-627)ELV001029827 (ELSEVIER)S0141-0229(18)30515-5 DE-627 ger DE-627 rda eng 610 DE-600 42.30 bkl 58.30 bkl Veeravalli, Sathyanarayanan S. verfasserin aut A novel low pH fermentation process for the production of acetate and propylene glycol from carbohydrate wastes 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A novel low pH fermentation process was studied for the conversion of lactose using Lactobacillus plantarum and Lactobacillus buchneri under anoxic conditions in single co-culture, and two-stage sequential fermentations. This is aimed at producing acetate and propylene glycol (PG) as environmentally benign substitutes for currently used road and aircraft deicing chemicals. The results indicate that in the case of two-stage fermentation with immobilized L. buchneri in the second stage, lactose degradation rate increased markedly producing acetate and PG concentrations of 12.1 and 10.7 g L−1 at pH 3.8. In the case of coculture fermentation, the acetate and PG concentrations were 8.2 and 6.8 g L−1, respectively. Fermentation of lactose and whey powder was conducted at pH 4.25 using a high cell density culture of L. buchneri. The acetate and PG yields were similar for both substrates at ∼0.3 g/g and ∼0.33 g/g respectively. With a starting lactose concentration of 60 g/L, acetate and PG concentrations of 18 g/L and 21 g/L respectively were obtained. The low pH conversion of wastes to value-added products under anoxic conditions provides substantial operating benefits over neutral pH fermentations that require strict anaerobic conditions for effective operation. Moreover, the low product pH at around 4.0 will provide substantial savings in downstream processing costs due to the much higher extraction efficiency of weak- and moderate- base resins for acetic acid compared to acetate ion. Immobilized fermentation Lactose degradation Deicers Mathews, Alexander P. verfasserin (orcid)0000-0002-7133-904X aut Enthalten in Enzyme and microbial technology Amsterdam [u.a.] : Elsevier Science, 1979 120, Seite 8-15 Online-Ressource (DE-627)306582031 (DE-600)1497704-7 (DE-576)094139687 1879-0909 nnns volume:120 pages:8-15 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 42.30 Mikrobiologie 58.30 Biotechnologie AR 120 8-15
allfieldsSound	10.1016/j.enzmictec.2018.09.006 doi (DE-627)ELV001029827 (ELSEVIER)S0141-0229(18)30515-5 DE-627 ger DE-627 rda eng 610 DE-600 42.30 bkl 58.30 bkl Veeravalli, Sathyanarayanan S. verfasserin aut A novel low pH fermentation process for the production of acetate and propylene glycol from carbohydrate wastes 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A novel low pH fermentation process was studied for the conversion of lactose using Lactobacillus plantarum and Lactobacillus buchneri under anoxic conditions in single co-culture, and two-stage sequential fermentations. This is aimed at producing acetate and propylene glycol (PG) as environmentally benign substitutes for currently used road and aircraft deicing chemicals. The results indicate that in the case of two-stage fermentation with immobilized L. buchneri in the second stage, lactose degradation rate increased markedly producing acetate and PG concentrations of 12.1 and 10.7 g L−1 at pH 3.8. In the case of coculture fermentation, the acetate and PG concentrations were 8.2 and 6.8 g L−1, respectively. Fermentation of lactose and whey powder was conducted at pH 4.25 using a high cell density culture of L. buchneri. The acetate and PG yields were similar for both substrates at ∼0.3 g/g and ∼0.33 g/g respectively. With a starting lactose concentration of 60 g/L, acetate and PG concentrations of 18 g/L and 21 g/L respectively were obtained. The low pH conversion of wastes to value-added products under anoxic conditions provides substantial operating benefits over neutral pH fermentations that require strict anaerobic conditions for effective operation. Moreover, the low product pH at around 4.0 will provide substantial savings in downstream processing costs due to the much higher extraction efficiency of weak- and moderate- base resins for acetic acid compared to acetate ion. Immobilized fermentation Lactose degradation Deicers Mathews, Alexander P. verfasserin (orcid)0000-0002-7133-904X aut Enthalten in Enzyme and microbial technology Amsterdam [u.a.] : Elsevier Science, 1979 120, Seite 8-15 Online-Ressource (DE-627)306582031 (DE-600)1497704-7 (DE-576)094139687 1879-0909 nnns volume:120 pages:8-15 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 42.30 Mikrobiologie 58.30 Biotechnologie AR 120 8-15
language	English
source	Enthalten in Enzyme and microbial technology 120, Seite 8-15 volume:120 pages:8-15
sourceStr	Enthalten in Enzyme and microbial technology 120, Seite 8-15 volume:120 pages:8-15
format_phy_str_mv	Article
bklname	Mikrobiologie Biotechnologie
institution	findex.gbv.de
topic_facet	Immobilized fermentation Lactose degradation Deicers
dewey-raw	610
isfreeaccess_bool	false
container_title	Enzyme and microbial technology
authorswithroles_txt_mv	Veeravalli, Sathyanarayanan S. @@aut@@ Mathews, Alexander P. @@aut@@
publishDateDaySort_date	2018-01-01T00:00:00Z
hierarchy_top_id	306582031
dewey-sort	3610
id	ELV001029827
language_de	englisch
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author	Veeravalli, Sathyanarayanan S.
spellingShingle	Veeravalli, Sathyanarayanan S. ddc 610 bkl 42.30 bkl 58.30 misc Immobilized fermentation misc Lactose degradation misc Deicers A novel low pH fermentation process for the production of acetate and propylene glycol from carbohydrate wastes
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topic_title	610 DE-600 42.30 bkl 58.30 bkl A novel low pH fermentation process for the production of acetate and propylene glycol from carbohydrate wastes Immobilized fermentation Lactose degradation Deicers
topic	ddc 610 bkl 42.30 bkl 58.30 misc Immobilized fermentation misc Lactose degradation misc Deicers
topic_unstemmed	ddc 610 bkl 42.30 bkl 58.30 misc Immobilized fermentation misc Lactose degradation misc Deicers
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title	A novel low pH fermentation process for the production of acetate and propylene glycol from carbohydrate wastes
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title_full	A novel low pH fermentation process for the production of acetate and propylene glycol from carbohydrate wastes
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title_sort	a novel low ph fermentation process for the production of acetate and propylene glycol from carbohydrate wastes
title_auth	A novel low pH fermentation process for the production of acetate and propylene glycol from carbohydrate wastes
abstract	A novel low pH fermentation process was studied for the conversion of lactose using Lactobacillus plantarum and Lactobacillus buchneri under anoxic conditions in single co-culture, and two-stage sequential fermentations. This is aimed at producing acetate and propylene glycol (PG) as environmentally benign substitutes for currently used road and aircraft deicing chemicals. The results indicate that in the case of two-stage fermentation with immobilized L. buchneri in the second stage, lactose degradation rate increased markedly producing acetate and PG concentrations of 12.1 and 10.7 g L−1 at pH 3.8. In the case of coculture fermentation, the acetate and PG concentrations were 8.2 and 6.8 g L−1, respectively. Fermentation of lactose and whey powder was conducted at pH 4.25 using a high cell density culture of L. buchneri. The acetate and PG yields were similar for both substrates at ∼0.3 g/g and ∼0.33 g/g respectively. With a starting lactose concentration of 60 g/L, acetate and PG concentrations of 18 g/L and 21 g/L respectively were obtained. The low pH conversion of wastes to value-added products under anoxic conditions provides substantial operating benefits over neutral pH fermentations that require strict anaerobic conditions for effective operation. Moreover, the low product pH at around 4.0 will provide substantial savings in downstream processing costs due to the much higher extraction efficiency of weak- and moderate- base resins for acetic acid compared to acetate ion.
abstractGer	A novel low pH fermentation process was studied for the conversion of lactose using Lactobacillus plantarum and Lactobacillus buchneri under anoxic conditions in single co-culture, and two-stage sequential fermentations. This is aimed at producing acetate and propylene glycol (PG) as environmentally benign substitutes for currently used road and aircraft deicing chemicals. The results indicate that in the case of two-stage fermentation with immobilized L. buchneri in the second stage, lactose degradation rate increased markedly producing acetate and PG concentrations of 12.1 and 10.7 g L−1 at pH 3.8. In the case of coculture fermentation, the acetate and PG concentrations were 8.2 and 6.8 g L−1, respectively. Fermentation of lactose and whey powder was conducted at pH 4.25 using a high cell density culture of L. buchneri. The acetate and PG yields were similar for both substrates at ∼0.3 g/g and ∼0.33 g/g respectively. With a starting lactose concentration of 60 g/L, acetate and PG concentrations of 18 g/L and 21 g/L respectively were obtained. The low pH conversion of wastes to value-added products under anoxic conditions provides substantial operating benefits over neutral pH fermentations that require strict anaerobic conditions for effective operation. Moreover, the low product pH at around 4.0 will provide substantial savings in downstream processing costs due to the much higher extraction efficiency of weak- and moderate- base resins for acetic acid compared to acetate ion.
abstract_unstemmed	A novel low pH fermentation process was studied for the conversion of lactose using Lactobacillus plantarum and Lactobacillus buchneri under anoxic conditions in single co-culture, and two-stage sequential fermentations. This is aimed at producing acetate and propylene glycol (PG) as environmentally benign substitutes for currently used road and aircraft deicing chemicals. The results indicate that in the case of two-stage fermentation with immobilized L. buchneri in the second stage, lactose degradation rate increased markedly producing acetate and PG concentrations of 12.1 and 10.7 g L−1 at pH 3.8. In the case of coculture fermentation, the acetate and PG concentrations were 8.2 and 6.8 g L−1, respectively. Fermentation of lactose and whey powder was conducted at pH 4.25 using a high cell density culture of L. buchneri. The acetate and PG yields were similar for both substrates at ∼0.3 g/g and ∼0.33 g/g respectively. With a starting lactose concentration of 60 g/L, acetate and PG concentrations of 18 g/L and 21 g/L respectively were obtained. The low pH conversion of wastes to value-added products under anoxic conditions provides substantial operating benefits over neutral pH fermentations that require strict anaerobic conditions for effective operation. Moreover, the low product pH at around 4.0 will provide substantial savings in downstream processing costs due to the much higher extraction efficiency of weak- and moderate- base resins for acetic acid compared to acetate ion.
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title_short	A novel low pH fermentation process for the production of acetate and propylene glycol from carbohydrate wastes
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up_date	2024-07-06T19:59:20.148Z
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A novel low pH fermentation process for the production of acetate and propylene glycol from carbohydrate wastes

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