| 吸附降氟法制备低氟边茶膏的效果评价 |
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| 引用本文： | 何春雷,罗学平,魏晓惠,杜晓,秦文.吸附降氟法制备低氟边茶膏的效果评价[J].食品科学,2011,32(2):18-23. |
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| 作者姓名： | 何春雷 罗学平 魏晓惠 杜晓 秦文 |
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| 作者单位： | 1. 四川农业大学园艺学院，四川省茶业科学与工程重点实验室
2. 四川省雅安市产品质量监督检验所 3. 四川农业大学食品学院 |
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| 基金项目： | 四川省科技厅项目(2006Z06-019) |
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| 摘 要： | 从11 种材料中选择对茶汤中氟具有较强吸附性能的食用级磷酸三钙和阴离子树脂，研究二者的吸附性能。采用高氟边茶为原料，研究磷酸三钙吸附降氟的工艺参数，并对制成的低氟边茶膏品质进行感官评价。结果表明：磷酸三钙在高温下具有较强的吸附性能，其饱和吸附量高达10.63mg/g 以上；进一步采用磷酸三钙对茶汤吸附降氟的工艺进行优化，其茶汤吸附降氟的最佳工艺参数为茶汤温度100℃、磷酸三钙用量0.7g/100mL、吸附处理时间20min，在该工艺组合下，茶汤中氟的去除率达到95.80%；将吸附降氟后的茶汤浓缩制备低氟边茶膏，结果氟含量较对照低94.80%，茶膏含氟量为66.52mg/kg；经稀释后具有汤色红浓明亮、陈香浓郁、滋味醇和的品质特征。
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| 关 键 词： | 低氟边茶膏 边茶 吸附降氟法 |
| 收稿时间： | 2010-03-31 |
Equilibrium and Kinetic Studies and Process Optimization of Fluorid Adsorption from Traditional Tibetan Bian Tea Infusion |
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| HE Chun-lei,LUO Xue-ping,WEI Xiao-hui,DU Xiao,QIN Wen.Equilibrium and Kinetic Studies and Process Optimization of Fluorid Adsorption from Traditional Tibetan Bian Tea Infusion[J].Food Science,2011,32(2):18-23. |
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| Authors: | HE Chun-lei LUO Xue-ping WEI Xiao-hui DU Xiao QIN Wen |
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| Affiliation: | 1. Key Laboratory of Tea Science and Engineering of Sichuan, College of Horticulture, Sichuan Agricultural University,
Ya’an 625014, China；2. Sichuan Ya’an Municipal Product Quality Supervision and Inspection Institute, Ya’an 625100,
China；3. College of Food Science, Sichuan Agricultural University, Ya’an 625014, China |
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| Abstract: | In the present study,food-grade tertiary calcium phosphate(TCP)and 731 type anion exchange resin were selected out of 11 kinds of adsorbents as better ones towards fluoride in the infusion of traditional Tibetan Bian tea.To prepare low-fluoride Bian tea cream,equilibrium and kinetic studies of fluoride from Bian tea infusion with a fluoride of 7.18 mg/L were made,and the technological conditions of TCP adsorption for reducing fluoride were optimized by orthogonal array design method.Meanwhile,the Bian tea c... |
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| Keywords: | low-fluoride Bian tea cream tertiary calcium phosphate adsorption for reducing fluoride |
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