Hydrolysis of potato processing waste for the production of poly-β-hydroxybutyrate

The present investigation described the effective preparation of glucosamine hydrochloride (GluHCl) from chitin which was extracted from indigenous shrimp shell. GluHCl has attracted much attention owing to its therapeutic activity in osteoarthritis and widely used dietary supplement. The key step involved was extraction of chitin from shrimp skeleton and then hydrolysis of chitin by concentrated hydrochloric acid. The reaction proceeds via break down of glycoside linkage. Structural analysis was carried out by melting point, TLC, FT-IR, elemental analysis and all the data were compared with that of standard GluHCl. The elemental (C, 32.75; H, 6.51; N, 6.20) analysis is good concord with the calculated value (C, 33.42; H, 6.54; N, 6.50). Absence of v max at 1726 cm-1 indicates that GluHCl is a deacetylated product of chitin. The yields of the product mainly depend on reaction conditions. Maximum yield (63.5%) was obtained when chitin was hydrolyzed with concentrated HCl for 1.30 h. Key words: Shrimp shell; Chitin, Acid hydrolysis; Glucosamine hydrochloride Osteoarthritis. DOI: http://dx.doi.org/10.3329/bjsir.v46i3.9046 BJSIR 2011; 46(3): 375-378

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Co-digestion of microalgae with potato processing waste and glycerol: effect of glycerol addition on methane production and the microbial community

RSC Advances ◽

10.1039/d0ra07840a ◽

2020 ◽

Vol 10 (61) ◽

pp. 37391-37408

Author(s):

Yanghanzi Zhang ◽

Gary S. Caldwell ◽

Philip T. Blythe ◽

Andrew M. Zealand ◽

Shuo Li ◽

...

Keyword(s):

Microbial Community ◽

Methane Production ◽

Processing Waste ◽

Potato Processing ◽

Potato Waste

Glycerol as an additional co-substrate enhanced methane yields by up to 128% when co-digestion with microalgae and potato waste.

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Tertiary treatment of potato processing waste by biological activated carbon process

American Potato Journal ◽

10.1007/bf02877325 ◽

1983 ◽

Vol 60 (7) ◽

pp. 543-555 ◽

Cited By ~ 3

Author(s):

Yung-Tse Hung

Keyword(s):

Activated Carbon ◽

Tertiary Treatment ◽

Processing Waste ◽

Potato Processing ◽

Biological Activated Carbon

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Extraction of Protease Under Solid State Fermentation using Bacterial Isolates from Traditional Leather Processing Waste Water Found Around Wukro Maray

Biosciences Biotechnology Research Asia ◽

10.13005/bbra/2656 ◽

2018 ◽

Vol 15 (3) ◽

pp. 509-515 ◽

Cited By ~ 1

Author(s):

Girma Haile ◽

Birhanu Babiye

Keyword(s):

Waste Water ◽

Energy Consumption ◽

Solid State ◽

Wheat Bran ◽

Bacterial Isolates ◽

Processing Waste ◽

Leather Processing ◽

Protease Enzyme ◽

Potential Activity ◽

Hydrolysis Of

Enzymes are important in reducing both energy consumption and combating environmental pollution. Proteases are enzymes which catalyze the hydrolysis of protein molecules.Most of the tannery industries in Ethiopia use chemicals for dehairing that led great environmental and human health problem. The objectives of the present study were,to isolate potential protease producing bacteria from water sample collected from traditional leather processing waste water around Wukro maray;to extract the protease enzyme through SSF using cheap wheat bran, and evaluate the potential activity of the enzyme in leather dehairing. Water samples were serially diluted and 1ml of sample was spread on nutrient agar and kept at 370C for 24 hrs. Many colonies of bacteria were formed. The colony from C10-4 and G10-3 were taken by using inoculating loop for sub culturing to get pure colony. Then the pure cultured colony were inoculated into the 250 ml Erlenmeyer flasks containing substrate were fermented after 6 days incubation at 370C. The results of the unknown concentration of the crude protease enzyme showed successfully used as dehairing agent on hide. The results indicate that these bacteria isolate can be used as biotechnological tool for industrial purpose.

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