A model for the rate of enzymatic hydrolysis of some cellulosic waste materials in heterogeneous solid–liquid systems

2003 ◽  
Vol 14 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Kamyar Movagharnejad ◽  
Morteza Sohrabi
Keyword(s):  
Enzymatic Hydrolysis ◽  
Waste Materials ◽  
Liquid Systems ◽  
Cellulosic Waste ◽  
Solid Liquid ◽  
Hydrolysis Of ◽  
Heterogeneous Solid

scholarly journals Solid-liquid systems for the hydrolysis of glycoalkaloids from potato (Solanum tuberosum L) tuber sprouts and solanidine isolation

2003 ◽  
Vol 57 (6) ◽  
pp. 288-292
Author(s):  
Nada Nikolic ◽  
Mihajlo Stankovic ◽  
Milorad Cakic
Keyword(s):  
Solanum Tuberosum ◽  
Liquid Phase ◽  
Hydrochloric Acid ◽  
Solid Phase ◽  
Solanum Tuberosum L ◽  
Volume Ratio ◽  
Liquid Systems ◽  
Pharmacologically Active ◽  
Solid Liquid ◽  
Hydrolysis Of

Solanidine (C17H43O/V) is a steroidal aglycone of glycoalkaloids and an important precursor for the synthesis of hormones and some pharmacologically active compounds. Glycoalkaloids are hydrolysed by mineral acid yielding solanidine and a carbohydrate moiety. In this paper the kinetics of hydrolysis of glycoalkaloids from potato (Solanum tuberosum L) tuber sprouts by using solid-liquid systems were studied as well as solanidine isolation from the liquid phase of the system. The dried and milled tuber sprouts of potato were used as the solid phase and solutions of hydrochloric acid of different concentration in 96 % vol. ethanol, mixed with chloroform in a volume ratio of 2:3, 1:1, 3:2 and 4:1, were used as the liquid phase. The aim of the paper was to choose the optimal concentration of hydrochloric acid in ethanol, the volume ratio of hydrochloric acid in ethanol to chloroform in the liquid phase and the time for solanidine hydrolytic extraction, as well as to isolate solanidine from the liquid phase.

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.

Enzymatic Hydrolysis of Meat Processing Cellulosic Waste

2010 ◽  
Vol 2 (4) ◽  
pp. 185-194
Author(s):  
H. J. Cumba ◽  
D. D. Bellmer
Keyword(s):  
Enzymatic Hydrolysis ◽  
Meat Processing ◽  
Cellulosic Waste ◽  
Hydrolysis Of

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
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