scholarly journals Enzymatic hydrolysis of organic waste materials in a solid–liquid system

2007 ◽  
Vol 27 (12) ◽  
pp. 1820-1828 ◽  
Author(s):  
S.N. Jordan ◽  
G.J. Mullen
Keyword(s):  
Enzymatic Hydrolysis ◽  
Organic Waste ◽  
Liquid System ◽  
Waste Materials ◽  
Solid Liquid ◽  
Hydrolysis Of

scholarly journals Acid and enyzymatic hyrolysis of Solarium tuberosum L. Glycoalkaloids: Comparison results

2006 ◽  
Vol 12 (4) ◽  
pp. 241-245 ◽  
Author(s):  
Nada Nikolic ◽  
Mihajlo Stankovic ◽  
Milorad Cakic
Keyword(s):  
Liquid Phase ◽  
Enzymatic Hydrolysis ◽  
Acid Hydrolysis ◽  
Liquid System ◽  
Two Phase ◽  
Comparison Results ◽  
Phase Liquid ◽  
Comparison Of The Results ◽  
Solid Liquid ◽  
Hydrolysis Of

A comparison of the results of the acid and enzymatic hydrolysis of GA from potato haulm and tuber sprouts is presented in this paper. Different systems were used for acid hydrolysis: monophase liquid, two-phase liquid-liquid or solid-liquid and three-phase solid-liquid-liquid systems. Enzymatic hydrolysis was carried out by enzymes present in fresh haulm and fresh tuber sprouts and the fresh juice obtained from fresh plant material. The procedure of acid hydrolysis of GA from potato sprouts in a two-phase liquid-liquid system was selected as the optimal procedure for obtaining solanidine. The liquid-liquid system was composed of GA extract with hydrochloric acid as the first liquid phase and chloroform as the second liquid phase. A degree of GA hydrolysis of 96% and a solanidine yield of 1.50 g per 100 g of dried tuber sprouts after 90 minutes were then achieved.

Enzymatic hydrolysis of polysaccharide-rich particulate organic waste

2006 ◽  
Vol 93 (6) ◽  
pp. 1145-1151 ◽  
Author(s):  
Pin-Jing He ◽  
Fan Lü ◽  
Li-Ming Shao ◽  
Xiu-Jiang Pan ◽  
Duu-Jong Lee
Keyword(s):  
Enzymatic Hydrolysis ◽  
Organic Waste ◽  
Hydrolysis Of

scholarly journals Calcium peroxide pretreatment to facilitate the delignification and enzymatic hydrolysis of wheat straw

2021 ◽  
Author(s):  
Youshan Sun ◽  
Xuyang Zhang ◽  
Fei Wang ◽  
Meiyan Wang
Keyword(s):  
Enzymatic Hydrolysis ◽  
Wheat Straw ◽  
Complex Structure ◽  
Raw Material ◽  
Liquid Ratio ◽  
Enzymatic Digestibility ◽  
Calcium Peroxide ◽  
Glucose Recovery ◽  
Solid Liquid ◽  
Hydrolysis Of

Abstract Calcium peroxide (CaO2) pretreatment was employed to remove lignin and subsequently facilitate enzymatic digestibility of wheat straw. An optimal condition was obtained at 130°C for 10 min with 0.35 g CaO2/g dried material of wheat straw and a 1:8 solid-liquid ratio. Under this condition, 57.8% of initial lignin, 7.2% of initial glucan, and 30.6% of initial xylan were removed from CaO2 pretreatment, respectively, meanwhile, a glucose recovery of 90.6 % and a xylose recovery of 65.9 % were obtained from the subsequent enzymatic hydrolysis of treated wheat straw, respectively. CaO2 pretreatment was proved to be a very effective method in delignification and improving enzymatic digestibility. Compared to raw material, the complex structure of lignocellulose was drastically disrupted with a wide emergence of scaly bulges and fully exposed microfibers, which still retained in the solid.

scholarly journals Solid–liquid separation of hydrolysates obtained from enzymatic hydrolysis of cardboard waste

2012 ◽  
Vol 38 ◽  
pp. 72-80 ◽  
Author(s):  
Teemu Kinnarinen ◽  
Mikko Huhtanen ◽  
Antti Häkkinen ◽  
Marjatta Louhi-Kultanen
Keyword(s):  
Enzymatic Hydrolysis ◽  
Liquid Separation ◽  
Solid Liquid ◽  
Solid Liquid Separation ◽  
Hydrolysis Of

Effects of the Protein in Wheat Straw on Enzymatic Hydrolysis

2013 ◽  
Vol 690-693 ◽  
pp. 1198-1202 ◽  
Author(s):  
Hui Chen ◽  
Lian Jie Wang ◽  
Tao Zhang ◽  
Meng Yu ◽  
Xin Ming Wang
Keyword(s):  
Enzymatic Hydrolysis ◽  
Wheat Straw ◽  
Degradation Rate ◽  
Cellulose Degradation ◽  
Hydrolysis Time ◽  
Reaction Conditions ◽  
Orthogonal Experiments ◽  
Enzyme Dosage ◽  
Solid Liquid ◽  
Hydrolysis Of

The article used acid protease to remove the protein in wheat straw, and investigated the influence of wheat straw without the protein to enzymatic hydrolysis. By the single factor experiments, the cellulose degradation rate of wheat straw removed the protein was significantly higher than untreated, in the same conditions of enzymatic hydrolysis. It is shortening 24h of enzymatic hydrolysis time and reducing enzyme dosage 90mg/g. By the orthogonal experiments, the optimal reaction conditions for enzymatic hydrolysis of wheat straw with protein removed is the cellulase dosage 170mg, enzymatic time 56h, solid-liquid ratio 1:20, pH 4.8, the reaction temperature 50°C. Compared to the untreated, the cellulose degradation rate increased by 35.58%.

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