Results 21 to 30 of about 856 (168)

磷脂酶C对大豆原油脱胶效果的研究Enzyme-catalyzed degumming of crude soybean oil by phospholipase C

open access: yesZhongguo youzhi, 2022
为了避免传统脱胶方式引起的化学品消耗大、水耗高,而且脱胶油得率低、残磷量高等问题,以大豆原油为原料,采用磷脂酶C对其进行酶法脱胶,考察加酶量、柠檬酸添加量、脱胶温度和脱胶时间对磷脂脱除和脱胶油得率的影响。结果表明,磷脂酶C脱胶的最佳反应条件为0.45 g/mL 柠檬酸添加量0.15 mL(100 g原油)、加酶量40 mg/100 g(以油质量计)、脱胶温度50 ℃、脱胶时间4 h。在最佳条件下,磷脂酶C脱胶油中含磷量降至1.00 mg/kg ...
李军1,杨静媚2,苏沛2,姜碧若2,杨小平1,徐浩宇1,毕艳兰1 LI Jun1, YANG Jingmei2, SU Pei2, JIANG Biruo2, YANG Xiaoping1, XU Haoyu1, BI Yanlan1
doaj   +1 more source

Response Regulator CitT from CitST Two-Component System Specifically Regulates the Pectin Degradation in Bio-Degumming of Ramie Fibers by Bacillus subtilis

open access: yesJournal of Natural Fibers, 2022
CitST is a typical two-component regulatory system that can regulate citrate utilization and is involved in the regulation of carbohydrate metabolism in Bacillus subtilis. B.
Qi Yang   +7 more
doaj   +1 more source

Chemical vs. Enzymatic Refining to Produce Peanut Oil for Edible Use or to Obtain a Sustainable and Cost-Effective Protector for Stored Grains against Sitophilus zeamais (Coleoptera: Curculionidae)

open access: yesFoods, 2022
Among the various existing techniques, enzymatic degumming represents a process that is establishing itself as a valid alternative to the more classic chemical processes. Moreover, vegetable oils of various origins have been gaining more consideration as
Monica Macaluso   +9 more
doaj   +1 more source

On-Line Real-Time Monitoring of a Rapid Enzymatic Oil Degumming Process: A Feasibility Study Using Free-Run Near-Infrared Spectroscopy

open access: yesFoods, 2021
Enzymatic degumming is a well established process in vegetable oil refinement, resulting in higher oil yield and a more stable downstream processing compared to traditional degumming methods using acid and water. During the reaction, phospholipids in the
Jakob Forsberg   +3 more
doaj   +1 more source

An Effective Degumming Technology for Ramie Fibers Based on Microbial Coculture Strategy

open access: yesJournal of Natural Fibers, 2022
Microbial treatment of natural fibers is a preferred alternatives in ramie degumming process as compared to conventional chemical degumming technology with alkaline treatment at high temperature.
Qi Yang   +7 more
doaj   +1 more source

Recombinant Expression of Serratia marcescens Outer Membrane Phospholipase A (A1) in Pichia pastoris and Immobilization With Graphene Oxide-Based Fe3O4 Nanoparticles for Rapeseed Oil Degumming

open access: yesFrontiers in Microbiology, 2019
Enzymatic degumming is an effective approach to produce nutritional, safe, and healthy refined oil. However, the high cost and low efficiency of phospholipase limit the application of enzymatic degumming.
Peizhou Yang   +7 more
doaj   +1 more source

Research Progress on the Effect of Oil Preparation Technology on Lipid Concomitants in Rapeseed Oil [PDF]

open access: yesShipin Kexue, 2023
The major route of rapeseed utilization is by the preparation of rapeseed oil. Different oil preparation technologies have a significant influence on lipid concomitants (including polyphenols, phytosterols, tocopherols, and β-carotene) in rapeseed oil ...
MA Xuan, WANG Weijun, ZHENG Chang, LIU Changsheng
doaj   +1 more source

Enhancing production of alkaline polygalacturonate lyase from Bacillus subtilis by fed-batch fermentation. [PDF]

open access: yesPLoS ONE, 2014
Alkaline polygalacturonate lyase (PGL, EC 4.2.2.2) is an enzyme used in many industries. We developed a fed-batch fermentation process that combines the enzymatic pretreatment of the carbon source with controlling the pH of the fermentative broth to ...
Mouyong Zou   +4 more
doaj   +1 more source

Enzymatic Degumming Process Controlled by Near-infrared Spectroscopy

open access: yesProceedings of the Virtual 2021 AOCS Annual Meeting & Expo, 2021
Abstract: Near-Infrared Spectroscopy (NIRS) instruments for process control in vegetable oil refining is already widely used. It can for example be used as in-line process control for measuring the FFA in oil, water content in meal, or composition of soap-stock.
Nielsen, Per M   +3 more
openaire   +4 more sources

Enzymatic Degumming of Silk with Microbial Proteases

open access: yesJournal of Natural Fibers, 2013
Degumming of Chinese bivoltine silk with alkaline proteases from various microbial sources was investigated and compared with commercial enzymes. Among the proteases tested, two fungal and two actinomycete proteases were promising, which showed weight loss similar to conventional method (19.58% to 21.78%).
S.V. More   +3 more
openaire   +1 more source

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