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厚朴枝皮中酚性提取物的研究 被引量:2
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作者 翁德会 付敏 刘玉华 《广州化工》 CAS 2014年第1期59-62,共4页
对厚朴枝皮中酚类成分的提取工艺及提取物浸膏质量进行了研究,以厚朴枝皮为原料,以厚朴酚与和厚朴酚为指标,通过单因素及正交试验筛选最佳提取工艺,并对工艺进行验证,同时对提取物浸膏进行分析检测。结果表明:通过研究,提取工艺稳定,提... 对厚朴枝皮中酚类成分的提取工艺及提取物浸膏质量进行了研究,以厚朴枝皮为原料,以厚朴酚与和厚朴酚为指标,通过单因素及正交试验筛选最佳提取工艺,并对工艺进行验证,同时对提取物浸膏进行分析检测。结果表明:通过研究,提取工艺稳定,提取物浸膏质量好,厚朴酚与和厚朴酚的含量较高,可以作为原料用于制剂生产。此方法简单,结果准确,可以用于工业化生产,并为扩大厚朴药用资源、工业化生产提供了依据。 展开更多
关键词 酚性提取物 提取工艺 质量控制
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Effects of Mango Skin or Mango Skin Combined with Paprika Extracts on Production Performance, Egg Quality and Egg Yolk Polyphenols
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作者 K. Lokaewmanee K. Yamauchi +1 位作者 T. Komori K. Saito 《Journal of Agricultural Science and Technology(A)》 2011年第8期1257-1260,共4页
The phenc, lic compounds found in mango fruit are antioxidants, and contribute to a reduction in the risk of cardiovascular diseases. Mango carotenoids are synthesized in mango fruit during ripening. A major by-produc... The phenc, lic compounds found in mango fruit are antioxidants, and contribute to a reduction in the risk of cardiovascular diseases. Mango carotenoids are synthesized in mango fruit during ripening. A major by-product of mango fruit is the skin, which is available after the fruits is consumed or used, particularly in the preparation of jams and fruit juices by the fruit canning industry. The objective of this study was to investigate the effects of dietary mango skin (MS) or mango skin combined with paprika extracts (PE) on production performance, egg quality, and egg yolk polyphenols. Total of 60 44-week-old Boris Brown hens was assigned, based on egg production rate and body weight, to 6 groups (10 birds in each group). The laying hens were fed a basal diet (control group, 18 CP, 2,800 kcal/kg ME), a basal diet supplemented with 0.1% PE, 1% or 5% MS, or with a mixture of 0.1% PE with 1% or 5% MS respectively. During the three-week experimental feeding period, the birds had free access to feed and water. Feed consumption was measured weekly and egg production was recorded daily. The results for initial body weight, feed consumption, hen-day production, egg mass, mortality, and final body weight did not indicate any effects of the different treatments (P 〉 0.05). There were no significant differences (P 〉 0.05) in shell-breaking strength, shell thickness, shell ratio, yolk ratio or Haugh units, except in the case of egg yolk color. Roche yolk color fan scores were better in all experimental groups than in the control (P 〈 0.0001). The yolk color, yellow index, and ratio of redness to yellowness were greater (P 〈 0.0001) in the 0.1% PE, the 0.1% PE + 1% MS, and the 0.1% PE + 5% MS group than in the 1%, 5% MS, and control groups. Compared with the control, lightness was decreased significantly in the 0.1% PE, the 0.1% PE + 1% MS, and the 0.1% PE + 5% MS groups (P 〈 0.05), whereas redness was increased significantly in the 0.1% PE, 0.1% PE + 1% MS, and 0.1% PE + 5% MS groups (P 〈 0.0001). No significant differences among the treatments were observed in either yellowness or egg yolk polyphenols. The results of the present experiment indicate that dietary mango skin or mango skin combined with paprika extracts did not show adverse effects on production performance, egg quality or egg yolk polyphenols. Moreover, supplementation with only mango skin did not enhance egg yolk color. 展开更多
关键词 MANGO skin paprika extracts performance egg quality polyphenols
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厚朴乳膏处方筛选及制备工艺的研究与开发
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作者 翁德会 毛淑芳 +1 位作者 程弘夏 许腊英 《湖北中医药大学学报》 2015年第2期45-48,共4页
目的厚朴酚性成分具有杀菌、消炎、燥湿、止痒等作用,通过制备乳膏对其提取物进行开发利用。方法根据厚朴酚、和厚朴酚的特点及乳膏基质的特点,筛选处方组成,并对制备工艺进行研究,通过对乳膏的外观性状、透皮、稠度和稳定性等指标进行... 目的厚朴酚性成分具有杀菌、消炎、燥湿、止痒等作用,通过制备乳膏对其提取物进行开发利用。方法根据厚朴酚、和厚朴酚的特点及乳膏基质的特点,筛选处方组成,并对制备工艺进行研究,通过对乳膏的外观性状、透皮、稠度和稳定性等指标进行考察,筛选最佳的处方组成,并制备厚朴乳膏。结果由该比例的组成制备的厚朴乳膏,重现性好,乳膏色泽较纯正,均匀细腻,稠度适宜,易涂布,稳定性好、透皮吸收等均较好,可以作为最佳配比来制备厚朴乳膏。结论厚朴乳膏可以作为一种新制剂进行开发利用。 展开更多
关键词 厚朴酚性提取物 厚朴乳膏 乳膏基质 工艺研究
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Enhancing polyphenol extraction from unripe apples by carbohydrate-hydrolyzing enzymes 被引量:7
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作者 In-Wook HWANG Shin-Kyo CHUNG 《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 SCIE CAS CSCD 2009年第12期912-919,共8页
The effects of process variables such as enzyme types, enzyme ratio, reaction temperature, pH, time, and ethanol concentration on the extraction of unripe apple polyphenol were investigated. The results indicated that... The effects of process variables such as enzyme types, enzyme ratio, reaction temperature, pH, time, and ethanol concentration on the extraction of unripe apple polyphenol were investigated. The results indicated that Viscozyme L had the strongest effect on polyphenols extraction and was selected to study the polyphenol composition. The ratio of enzyme (Viscozyme L) to sobstrate (2 fungal beta-glucanase units (FBG)) at 0.02, reaction at pH 3.7, 50℃ for 12 h, and ethanol concentration of 70% were chosen as the most favorable extraction condition. Total phenolic content (TPC), reducing sugar content (RSC), and extraction yield increased by about 3, 1.5, and 2 times, respectively, compared with control. The contents ofp-coumaric acid, ferulic acid, and caffeic acid increased to 8, 4, and 32 times, respectively. The enzyme-aided polyphenol extraction process from unripe apples might be applied to food industry for enhancing bioactive compound production. 展开更多
关键词 Carbohvdrate-hvdrolvzim enzvmes. Unrioe aonles. Polvnhenol extraction. Caffeic acid
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Assessment of anti-diabetic activity of peanut shell polyphenol extracts
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作者 Xiao-meng SUN Hai-qing YE +4 位作者 Jing-bo LIU Lei WU Ding-bo LIN Ya-li YU Feng GAO 《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 SCIE CAS CSCD 2018年第10期764-775,共12页
The present study aimed to evaluate the anti-diabetic property of peanut shell polyphenol extracts (PSPEs). Diabetic rats were oral-administrated with PSPE at doses of 50, 100, and 200 mg/kg body weight (BW) per d... The present study aimed to evaluate the anti-diabetic property of peanut shell polyphenol extracts (PSPEs). Diabetic rats were oral-administrated with PSPE at doses of 50, 100, and 200 mg/kg body weight (BW) per day for 28 consecutive days, with metformin (Met) as a positive control. The results showed that, similar to the Met treatment, administration of PSPE caused significant decreases in food intake, water intake, fasting blood glucose, total cholesterol, triglyceride, low-density lipoprotein cholesterol, and methane dicarboxylic aldehyde in serum, and significant increases in BW, insulin level, high-density lipoprotein cholesterol, superoxide dismutase, glutathione, and liver gly- cogen. Further, glucose tolerance was markedly improved in the PSPE-treated diabetic groups. Histopathological results showed that PSPE improved cellular structural and pathological changes in liver, kidney, and pancreatic islets. Collectively, the results indicated that the hypoglycemic effects of PSPE on high-fat diet/streptozotocin (HFD/STZ)induced diabetes are comparable to Met, though their exact mechanism actions are still under investigation. Therefore, the current study suggests that PSPE could be a potential health-care food supplement in the management of diabetes. 展开更多
关键词 Peanut shell polyphenol extract (PSPE) Anti-diabetic activity Streptozotocin (STZ)
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