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Chemical constituents and antioxidant activities of waste liquid extract from Apostichopus japonicus Selenka processing

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Chinese Journal of Oceanology and Limnology 2013年第4期31卷 850-859页

作者：李超峰李宪璀李红郭书举朱校斌 Institute of Oceanology Chinese Academy of Sciences University of Chinese Academy of Sciences

Apostichopus japonicus Selenka is an ideal tonic food that is used traditionally in many Asian countries, and it contains many bioactive substances, such as antioxidant, antimicrobial, and anticancer materials. To convert waste liquid generated during production into a useful resource, extract from waste liquid was isolated by column chromatography and studied by the pyrogallol autoxidation and 1,10-phenanthroline-Fe^2＋ oxidation methods. Results show that the extract scavenged about 91% of the superoxide anion radical at a concentration of 1.4 mg/mL and 24% of the hydroxyl radical at 3.3 mg/mL. Four compounds were isolated and identified from the extract： 2,4-dihydroxy-5-methyl-1,3-azine; 2,4-dihydroxy- 1,3-diazine; 3-O-β-D-quinovopranosyl-（1→2）-4-O-sodium sulfate-β-D-xylopranosyl]-holosta-9（11）-ene313,12β,17α-triol; and 24-ethyl-5α-cholesta-7-ene-3β-O-β-D-xylopyranoside. All of these compounds are known in A. japonicus, and were found in the waste liquid for the first time.

关键词： waste liquid extraction antioxidant activity chemical constituents

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Study on the New Technology of Pretreatment of Sewage Treatmen in the Second sewage station of Zhongyuan Oilfield

Study on the New Technology of Pretreatment of Sewage Treatm...

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河南省化学会2016年学术年会

作者： Zhang Fujie Che Guifu Zhang Zhenfei Puyang City Institute of Chemical Engineering

Study on the new technology of pretreatment of sewage treatment in zhongyuan oilfield second sewage station, results show that: after treatment of waste water p H is 7.0, suspended solids, greatly reduce, total iron content decreased significantly, decline in the corrosion rate of the mixed liquid, liquid membrane system number more than 15;Qing mixed sewage water and pretreatment wastewater 80:3 80:4 has good treatment effect, continue to increase the proportion, degree affected the sewage treatment effect.

关键词： waste liquid Pretreatment Mixed water for cleaning

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