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EXTRACTION AND EVALUATION OF EDIBLE OIL FROM SCHIZOCHYTRIUM SP. USING AN AQUEOUS ENZYMATIC METHOD

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 4,   Pages 623-634 doi: 10.15302/J-FASE -2021400

Abstract:

Schizochytrium sp., a marine microalga, is a potential source of edible oil due to its short growth cycle and rapid lipid accumulation, especially of docosahexaenoic acid. An approach to isolate edible microalgal oil from Schizochytrium sp. using aqueous enzymatic extraction (AEE) was developed. Parameters were optimized by single-factor experiments followed by Box-Behnken design. Proteases were effective in extracting oil. The maximum free oil recovery (49.7%±0.58%) and total oil recovery (68.1%±0.94%) were obtained under optimum conditions of liquid-to-solid ratio of 4.8:1, a 2.5% enzyme concentration of papain and an extraction time of 2.2 h. There was a significant difference (P<0.05) in polyunsaturated fatty acid composition between microalgal oil obtained by AEE and by Soxhlet extraction, with the former having superior physiochemical properties and higher concentrations of bioactive components including total phenolic compounds and total tocopherols. These findings indicate a potential application of AEE for extraction of oil from Schizochytrium sp.

 

Keywords： antioxidant activity / aqueous enzymatic extraction / edible microalgal oil / fatty acid composition    

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Antibacterial properties of extracts of

Manhong YE,Lei ZHANG,Jiaqi GE,Haifeng SUN,Jingjing NI,Shengmei YANG,Wanhong WEI

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 4,   Pages 327-334 doi: 10.15302/J-FASE-2015078

Abstract: determination of minimum inhibitory concentration revealed that the extracts had lower antibacterial activityCrayfish fed a diet with 2% these aqueous extracts exhibited significantly higher enzyme activity of

Keywords： antibacterial activity     Canadian goldenrod     antioxidant enzyme     crayfish    

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Physicochemical Properties and Bioactivities of Rice Beans Fermented by Bacillus amyloliquefaciens Article

Shan Wu,  Shuai Lu, Jun Liu, Shaoqing Yang, Qiaojuan Yan, Zhengqiang Jiang

Engineering 2021, Volume 7, Issue 2,   Pages 219-225 doi: 10.1016/j.eng.2020.10.010

Abstract: The fermentation conditions were optimized on the basis of the fibrinolytic activity.Under the optimal fermentation conditions, the fibrinolytic activity reached a maximum of 78.0 FU·rutin per 100 g), and anthocyanin (from 20.1 to 47.1 mg per 100 g), as well as the superoxide dismutase activityethylbenzothiazoline-6-sulphonic acid) diammonium salt (ABTS) free radical scavenging activities and ferric reducing antioxidant

Keywords： Solid-state fermentation     Rice beans     Bacillus amyloliquefaciens     Antithrombotic activity     Antioxidantactivity     Antidiabetic activity    

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EMBRYOGENESIS ABUNDANT FAMILY GENE FROM PONCIRUS TRIFOLIATA, CONFERS ENHANCED DROUGHT TOLERANCE BY ENHANCING ANTIOXIDANT

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 2,

Abstract: In addition, transgenic plants had much higher expression levels of three antioxidant enzyme genes (CAT, SOD and POD) and significantly increased catalase enzyme activity, accompanied by reduced reactivethis study demonstrates that PtrLEA7 can confer enhanced drought tolerance partially via enhancing antioxidant
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Polyamines and antioxidant defense system are associated with cold tolerance in centipedegrass

Jingjing CHEN, Junyang FANG, Zhenfei GUO, Shaoyun LU

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 1,   Pages 129-138 doi: 10.15302/J-FASE-2017197

Abstract: Exogenous Put or Spd increased antioxidant enzyme activities and chilling tolerance.

Keywords： antioxidants     centipedegrass     chilling     photosynthesis     polyamines    

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OVEREXPRESSION OF

Tonglu WEI, Dalong GUO, Jihong LIU

Frontiers of Agricultural Science and Engineering   Pages 236-246 doi: 10.15302/J-FASE-2020368

Abstract: In addition, transgenic plants had much higher expression levels of three antioxidant enzyme genes (CAT, SOD and POD) and significantly increased catalase enzyme activity, accompanied by reduced reactivethis study demonstrates that PtrLEA7 can confer enhanced drought tolerance partially via enhancing antioxidant

Keywords： abiotic stress     antioxidant     drought     late embryogenesis abundant     Poncirus trifoliata    

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Antioxidant and antitumor effects and immunomodulatory activities of crude and purified polyphenol extract

Xiaohong Kou,Lihua Han,Xingyuan Li,Zhaohui Xue,Fengjuan Zhou

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 1,   Pages 108-119 doi: 10.1007/s11705-016-1553-7

Abstract: The antioxidant and antitumor effects as well as the immunomodulatory activities of crude and purifiedThe antioxidant and antitumor effects of the polyphenol extract were measured both and , and theirassays demonstrated that blueberry purified polyphenol extract (BBPP) exhibited higher antioxidant activitiesBoth the and antitumor activity and the immunity assay showed that BBCP not only inhibited tumor growthThese results indicate that BBCP has significant antioxidant and antitumor activities and that it can

Keywords： crude polyphenol extract     purified polyphenol extract     blueberry     antioxidant     antitumor     immunity    

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Inhibition of NO emission by adding antioxidant mixture in

A. PRABU,R. B. ANAND

Frontiers in Energy 2015, Volume 9, Issue 2,   Pages 238-245 doi: 10.1007/s11708-015-0356-8

Abstract: In this paper, the effect of adding an antioxidant mixture in biodiesel as fuel, in a single cylinderThe comparison showed that NO emission was reduced drastically for the test fuels with the antioxidantThe maximum reduction of 10% of NO emission was observed for the antioxidant mixture in neat biodiesel

Keywords： NO emission     antioxidants     Succinimide     N     N-dimethyl-p-phenylenediamine-dihydrochloride     N-phenyl-p-phenylenediamine    

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IDEEA activity monitor: validity of activity recognition for lying, reclining, sitting and standing

Yuyu Jiang, Janet L. Larson

Frontiers of Medicine 2013, Volume 7, Issue 1,   Pages 126-131 doi: 10.1007/s11684-012-0236-0

Abstract: Most instruments measure physical activity and are not validated as measures of sedentary behavior.

Keywords： IDEEA     activity monitor     sedentary behavior    

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Production of pectic extracts from sugar beet pulp with antiproliferative activity on a breast cancer

Jacqueline CONCHA, Caroline WEINSTEIN, María Elvira Zú?IGA

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 4,   Pages 482-489 doi: 10.1007/s11705-013-1342-5

Abstract: The pectic extract was examined for its antiproliferative activity on the MCF-7 breast cancer cell lineof 12.5–25 mg/mL the pectic extract killed 80.6% of the cells, exhibiting a higher antiproliferative activity

Keywords： pectic extracts     antiproliferative activity     breast cancer     enzymatic treatment    

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Zinc homeostasis in the metabolic syndrome and diabetes

Xiao Miao, Weixia Sun, Yaowen Fu, Lining Miao, Lu Cai

Frontiers of Medicine 2013, Volume 7, Issue 1,   Pages 31-52 doi: 10.1007/s11684-013-0251-9

Abstract: enzymes or proteins, (2) a requirement for insulin storage and secretion, (3) a direct or indirect antioxidant

Keywords： zinc     zinc transporters     metallothionein     diabetes     diabetic complications     insulin resistance     antioxidant    

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Effects of

Yuping ZHANG, Yanfei ZHOU, Xingxu ZHANG, Tingyu DUAN, Zhibiao NAN

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 1,   Pages 148-158 doi: 10.15302/J-FASE-2017195

Abstract: The activities of the antioxidant enzymes ascorbate peroxidase, catalase, peroxidase and superoxide dismutaseE+ plants from the WLS and QY populations had significantly higher antioxidant enzyme activities andThus, endophyte infection significantly affected antioxidant enzyme activities ( <0.05), photosynthesis

Keywords： antioxidant enzymes     Elymus dahuricus     Epichloë     fungal endophyte     photosynthesis    

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Low intensity ultrasound stimulates biological activity of aerobic activated sludge

LIU Hong, YAN Yixin, WANG Wenyan, YU Yongyong

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 1,   Pages 67-72 doi: 10.1007/s11783-007-0013-5

Abstract: Oxygen uptake rate (OUR) of the activated sludge (AS) was determined to indicate the changes of AS activityMore significantly, the AS activity stimulated by ultrasound could last 24 h after sonication, and theAS activity achieved its peak value within 8 h after sonication, or nearly 100% higher than the initial

Keywords： sonication     irradiation     kHz     treatment efficiency     AS activity    

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preparation of Ag@AgCl/Bio-veins composites and their photocatalytic activity and recyclability

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 7,   Pages 906-917 doi: 10.1007/s11705-022-2273-9

Abstract: In this work, a facile strategy was proposed to enhance the photocatalytic activity and recovery performance

Keywords： Ag@AgCl     biological veins     photocatalytic activity     recyclability    

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Effect of 2-butenal manufacture wastewater to methanogenic activity and microbial community

Guangqing Song, Hongbo Xi, Xiumei Sun, Yudong Song, Yuexi Zhou

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 5, doi: 10.1007/s11783-018-1056-5

Abstract:

The inhibition ratio sharply increased with the increasing COD.

The absorbance of UV-vis at 420 nm showed a linear correlation with the SMA.

The molecular structure of EPS has changed when COD was 9585 mg/L.

Illumina Miseq sequencing was employed to reveal the microbial composition.

Keywords： 2-butenal manufacture wastewater     Methanogenic activity     Specific methanogenic activity (SMA)     Extracellular    

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Title Author Date Type Operation

EXTRACTION AND EVALUATION OF EDIBLE OIL FROM SCHIZOCHYTRIUM SP. USING AN AQUEOUS ENZYMATIC METHOD

Journal Article

Antibacterial properties of extracts of

Manhong YE,Lei ZHANG,Jiaqi GE,Haifeng SUN,Jingjing NI,Shengmei YANG,Wanhong WEI

Journal Article

Physicochemical Properties and Bioactivities of Rice Beans Fermented by Bacillus amyloliquefaciens

Shan Wu,  Shuai Lu, Jun Liu, Shaoqing Yang, Qiaojuan Yan, Zhengqiang Jiang

Journal Article

EMBRYOGENESIS ABUNDANT FAMILY GENE FROM PONCIRUS TRIFOLIATA, CONFERS ENHANCED DROUGHT TOLERANCE BY ENHANCING ANTIOXIDANT

Journal Article

Polyamines and antioxidant defense system are associated with cold tolerance in centipedegrass

Jingjing CHEN, Junyang FANG, Zhenfei GUO, Shaoyun LU

Journal Article

OVEREXPRESSION OF

Tonglu WEI, Dalong GUO, Jihong LIU

Journal Article

Antioxidant and antitumor effects and immunomodulatory activities of crude and purified polyphenol extract

Xiaohong Kou,Lihua Han,Xingyuan Li,Zhaohui Xue,Fengjuan Zhou

Journal Article

Inhibition of NO emission by adding antioxidant mixture in

A. PRABU,R. B. ANAND

Journal Article

IDEEA activity monitor: validity of activity recognition for lying, reclining, sitting and standing

Yuyu Jiang, Janet L. Larson

Journal Article

Production of pectic extracts from sugar beet pulp with antiproliferative activity on a breast cancer

Jacqueline CONCHA, Caroline WEINSTEIN, María Elvira Zú?IGA

Journal Article

Zinc homeostasis in the metabolic syndrome and diabetes

Xiao Miao, Weixia Sun, Yaowen Fu, Lining Miao, Lu Cai

Journal Article

Effects of

Yuping ZHANG, Yanfei ZHOU, Xingxu ZHANG, Tingyu DUAN, Zhibiao NAN

Journal Article

Low intensity ultrasound stimulates biological activity of aerobic activated sludge

LIU Hong, YAN Yixin, WANG Wenyan, YU Yongyong

Journal Article

preparation of Ag@AgCl/Bio-veins composites and their photocatalytic activity and recyclability

Journal Article

Effect of 2-butenal manufacture wastewater to methanogenic activity and microbial community

Guangqing Song, Hongbo Xi, Xiumei Sun, Yudong Song, Yuexi Zhou

Journal Article