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安吉白茶含片的制作及其抗氧化活性评价[J]. 华体会体育, 2012, (18): 245-247. DOI: 10.13386/j.issn1002-0306.2012.18.073
引用本文: 安吉白茶含片的制作及其抗氧化活性评价[J]. 华体会体育, 2012, (18): 245-247. DOI: 10.13386/j.issn1002-0306.2012.18.073
Processing and antioxidant activities of anjibaicha tea polyphenols tablets[J]. Science and Technology of Food Industry, 2012, (18): 245-247. DOI: 10.13386/j.issn1002-0306.2012.18.073
Citation: Processing and antioxidant activities of anjibaicha tea polyphenols tablets[J]. Science and Technology of Food Industry, 2012, (18): 245-247. DOI: 10.13386/j.issn1002-0306.2012.18.073

安吉白茶含片的制作及其抗氧化活性评价

Processing and antioxidant activities of anjibaicha tea polyphenols tablets

  • 摘要: 经过筛选配方和优化工艺,采用湿颗粒法制备安吉白茶含片并进行质量评价;采用清除DPPH自由基、ABTS+自由基,测定亚铁离子螯合活性和还原力,评价其抗氧化活性。结果表明,安吉白茶提取物、蔗糖、柠檬酸、糊精等对含片的质量有较大影响,最佳配方为90%乙醇做湿润剂,成品含5%安吉白茶提取物、40%蔗糖、20%麦芽糊精、1.6%柠檬酸、3%VC、5%牛磺酸、25.4%甘露醇和0.6%硬脂酸镁。该含片清除DPPH自由基、ABTS+自由基的IC50分别为48.74、43.32μg/mL,对亚铁离子的半螯合浓度为773.60μg/mL,还原力为0.97μmol/mg。该含片口感好,有安吉白茶风味,表面光滑美观,硬度、崩析性好,具有良好的抗氧化活性。 

     

    Abstract: By optimizing formula and processing and using moist pellet manufacturing method, a kind of anjibaicha tea polyphenols tablets (ATPT) was prepared.The antioxidant avtivities of ATPT were evaluated, using various antioxidant assays included the scavenging on DPPH and ABTS+ free radicals, ferrous ion chelating activity, and reducing power determination.The result showed that the anjibaicha extract and the quantities of several primary materials had great effect on the quality of ATPT.The moistening agent was 90% ethanol.The optimum formula was 5% anjibaicha extract, 40% sugar, 20% maltodextrin, 1.6% citric acid, 3% vitamin C, 5% taurine, 25.4% mannitol and 0.6% magnesium stearate.The half scavenging rate (IC50) of ATPT on DPPH and ABTS+ free radicals was 48.74, 43.32μg/mL, respectively.The ferrous ion chelating concentration in half of ATPT was 773.60μg/mL.Moreover, the reducing capacity of ATPT was 0.97μmol/mg.This study elucidated that new ATPT had good taste, special flavor of anjibaicha, smooth surface, identical color, good hardness, and excellent antioxidant activity.

     

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