In order to improve the comprehensive utilization value of water chestnut peel and the income of farmers. Contents of crude protein( CP),total sugar and reducing sugar were taken as indicators. Effects of initial p H,...In order to improve the comprehensive utilization value of water chestnut peel and the income of farmers. Contents of crude protein( CP),total sugar and reducing sugar were taken as indicators. Effects of initial p H,ratio of yeast to fungi species,incubation time and liquid volume on production of single cell protein( SCP) feed was studied,and technological conditions on production of SCP feed by water chestnut peel were optimized by orthogonal test. Results showed that the production of SCP feed by water chestnut peel was optimal when p H was 5. 0,ratio of yeast to fungi species was 2:1,fermentation time was 2 d and the liquid volume was 70 m L/250 m L. Under the optimum conditions,content of fermentation CP was 64. 25%,content of total sugar was 19. 8%,content of reducing sugar was 5. 0%,content of coarse fibre was 0. 0% and content of ash was 8. 04%.展开更多
The aim of this research was to convert potato peel waste (PPW) to single cell protein (SCP), and to extract valuable phenolic compounds from the spent medium. PPW is an abundant by-product of potato processing indust...The aim of this research was to convert potato peel waste (PPW) to single cell protein (SCP), and to extract valuable phenolic compounds from the spent medium. PPW is an abundant by-product of potato processing industry, consisting mostly of starch, fibre and protein in a form of watery sludge. The PPW from a chip manufacturing plant was pre-treated with sulphuric acid, and used as a substrate for an acidophilic Scytalidium acidophilum fungus under non-aseptic conditions. The produced SCP had a promising amino acid composition to be used in animal feed. Phenolic compounds were not recovered from the spent medium, most likely due to the low pH in the medium. The present findings suggest that PPW is a suitable raw material for acidophilic SCP production, whilst the extraction of phenolic acids would require milder cultivation conditions or separation before pre-treatments of SCP production. The BOD5 of the PPW was reduced by in 98% due to fungal cultivation. Thus the feed production also served as an efficient means for reduction of organic load in the PPW.展开更多
Production of single cell protein(SCP)from food waste is one of the promising approaches for excellent waste management.In the present study,SCP was produced through submerged fermentation using selected food wastes(b...Production of single cell protein(SCP)from food waste is one of the promising approaches for excellent waste management.In the present study,SCP was produced through submerged fermentation using selected food wastes(banana peel,citrus peel,carrot pomace and potato peel).During process optimization,combinations of various temperature and nitrogen sources were studied for optimum SCP yield(g/100g).The results indicated that maximum SCP yield was obtained at 30℃ for 7 days on potato peels,whereas citrus and banana peels exhibited the lowest SCP yield at the same process conditions.The SCP compositional analysis indicated that the amount of non-essential amino acids was significantly higher than wheat flour.Furthermore,SCP enriched bread was prepared by adding SCP at different concentrations(0,4,8,and 12%).The organoleptic properties indicated that SCP addition up to 4%was acceptable to prepare protein enriched bread.Thus,SCP may be effectively used for food waste management and food security.展开更多
Lignocellulose—a major component of biomass available on earth is a renewable and abundantly available with great potential for bioconversion to value-added bio-products. The review aims at physio-chemical features o...Lignocellulose—a major component of biomass available on earth is a renewable and abundantly available with great potential for bioconversion to value-added bio-products. The review aims at physio-chemical features of lignocellulosic biomass and composition of different lignocellulosic materials. This work is an overview about the conversion of lignocellulosic biomass into bio-energy products such as bio-ethanol, 1-butanol, bio-methane, bio-hydrogen, organic acids including citric acid, succinic acid and lactic acid, microbial polysaccharides, single cell protein and xylitol. The biotechnological aspect of bio-transformation of lignocelluloses research and its future prospects are also discussed.展开更多
基金Supported by Guangxi Science and Technology Development Project:Construction of Technology Services Platform of Hezhou Agricultural Science and Technology Park(14258003)Guangxi Higher Education Teaching Reform Project:Research on Regional Academic Specialty Biological Experiment Teaching Mode Innovation and Service of Local Economy(2014JGZ145)
文摘In order to improve the comprehensive utilization value of water chestnut peel and the income of farmers. Contents of crude protein( CP),total sugar and reducing sugar were taken as indicators. Effects of initial p H,ratio of yeast to fungi species,incubation time and liquid volume on production of single cell protein( SCP) feed was studied,and technological conditions on production of SCP feed by water chestnut peel were optimized by orthogonal test. Results showed that the production of SCP feed by water chestnut peel was optimal when p H was 5. 0,ratio of yeast to fungi species was 2:1,fermentation time was 2 d and the liquid volume was 70 m L/250 m L. Under the optimum conditions,content of fermentation CP was 64. 25%,content of total sugar was 19. 8%,content of reducing sugar was 5. 0%,content of coarse fibre was 0. 0% and content of ash was 8. 04%.
基金the European Regional Development Fund project A70161.
文摘The aim of this research was to convert potato peel waste (PPW) to single cell protein (SCP), and to extract valuable phenolic compounds from the spent medium. PPW is an abundant by-product of potato processing industry, consisting mostly of starch, fibre and protein in a form of watery sludge. The PPW from a chip manufacturing plant was pre-treated with sulphuric acid, and used as a substrate for an acidophilic Scytalidium acidophilum fungus under non-aseptic conditions. The produced SCP had a promising amino acid composition to be used in animal feed. Phenolic compounds were not recovered from the spent medium, most likely due to the low pH in the medium. The present findings suggest that PPW is a suitable raw material for acidophilic SCP production, whilst the extraction of phenolic acids would require milder cultivation conditions or separation before pre-treatments of SCP production. The BOD5 of the PPW was reduced by in 98% due to fungal cultivation. Thus the feed production also served as an efficient means for reduction of organic load in the PPW.
文摘Production of single cell protein(SCP)from food waste is one of the promising approaches for excellent waste management.In the present study,SCP was produced through submerged fermentation using selected food wastes(banana peel,citrus peel,carrot pomace and potato peel).During process optimization,combinations of various temperature and nitrogen sources were studied for optimum SCP yield(g/100g).The results indicated that maximum SCP yield was obtained at 30℃ for 7 days on potato peels,whereas citrus and banana peels exhibited the lowest SCP yield at the same process conditions.The SCP compositional analysis indicated that the amount of non-essential amino acids was significantly higher than wheat flour.Furthermore,SCP enriched bread was prepared by adding SCP at different concentrations(0,4,8,and 12%).The organoleptic properties indicated that SCP addition up to 4%was acceptable to prepare protein enriched bread.Thus,SCP may be effectively used for food waste management and food security.
文摘Lignocellulose—a major component of biomass available on earth is a renewable and abundantly available with great potential for bioconversion to value-added bio-products. The review aims at physio-chemical features of lignocellulosic biomass and composition of different lignocellulosic materials. This work is an overview about the conversion of lignocellulosic biomass into bio-energy products such as bio-ethanol, 1-butanol, bio-methane, bio-hydrogen, organic acids including citric acid, succinic acid and lactic acid, microbial polysaccharides, single cell protein and xylitol. The biotechnological aspect of bio-transformation of lignocelluloses research and its future prospects are also discussed.
