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中國精品科技期刊2020
朱磊,呂珊珊,史文雅,等. 寒地‘貝達’葡萄清汁的研制及理化指標分析[J]. 食品工業科技,2024,45(7):177?183. doi: 10.13386/j.issn1002-0306.2023050223.
引用本文: 朱磊,呂珊珊,史文雅,等. 寒地‘貝達’葡萄清汁的研制及理化指標分析[J]. 食品工業科技,2024,45(7):177?183. doi: 10.13386/j.issn1002-0306.2023050223.
ZHU Lei, Lü Shanshan, SHI Wenya, et al. Development and Physicochemical Index Analysis of Clear Grape Juice Made from 'Beta' in Cold Regions[J]. Science and Technology of Food Industry, 2024, 45(7): 177?183. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2023050223.
Citation: ZHU Lei, Lü Shanshan, SHI Wenya, et al. Development and Physicochemical Index Analysis of Clear Grape Juice Made from 'Beta' in Cold Regions[J]. Science and Technology of Food Industry, 2024, 45(7): 177?183. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2023050223.

寒地‘貝達’葡萄清汁的研制及理化指標分析

Development and Physicochemical Index Analysis of Clear Grape Juice Made from 'Beta' in Cold Regions

  • 摘要: 以寒地栽培的抗性砧木品種‘貝達’果實為原料,為了克服原汁‘糖低酸高’的缺陷,突出其美洲種特有的風味特征,并使果實中的營養活性成分得以充分保留,研制了一款葡萄清汁產品,實現了榨汁后葡萄皮渣的二次利用。利用單因素實驗,確定了葡萄皮渣酚類提取的最佳工藝條件:乙醇濃度為60%、料液比為1:25、浸提時間為1.5 h、浸提次數為3次。通過單因素實驗和正交試驗確定了寒地‘貝達’葡萄清汁的最優配方:原汁添加量為45%、白砂糖添加量為8.2%、檸檬酸添加量為0.035%、葡萄皮酚類提取物添加量為0.4%、葡萄籽酚類提取物添加量為0.5%。研制的寒地‘貝達’葡萄清汁為深寶石紅色,且酸甜適中、葡萄風味突出,其中維生素C含量為3.27 mg/100 mL、總酚含量為831.08 mg GAE/L、黃烷-3-醇含量為25.37 mg CAE/L、花色苷含量為15.75 mg CGE/L、DPPH自由基清除能力為3.71 mmol Trolox/L。與市售純汁葡萄汁相比,寒地‘貝達’葡萄清汁純汁比例下降,但是減少了加糖量,葡萄皮渣酚類提取物的添加提高了產品的營養和活性,符合當今消費者對果汁品質和健康的雙重需求。

     

    Abstract: In this study, a product of clear juice was developed with the grape berries of a resistant rootstock variety 'Beda' cultivated in cold regions. The product overcomed the shortcomings of 'low sugar and high acidity' in the original juice and enhanced the flavor feature inherent to the American Vitis grapes. The secondary utilization of the pomace after pressing fully reserved the nutritional and bioactive constituents of berry into the juice. The optimum process conditions for the phenolic extraction from grape pomace were obtained by single-factor tests, including ethanol concentration of 60%, material-liquid ratio of 1:25, extraction duration of 1.5 h and 3 extraction times. And the optimum formula for clear grape juice made from 'Beda' in cold regions was determined by single-factor and orthogonal tests, containing 45% original juice, 8.2% sugar, 0.035% citric acid, 0.4% phenolic extracts from grape skin pomace and 0.5% phenolic extracts from grape seed pomace. The clear grape juice had a deep ruby red color, the appropriate sweetness and acidity and an outstanding grape flavor. There were 3.27 mg/100 mL of vitamin C, 831.08 mg GAE/L of total phenolics, 25.37 mg CAE/L of flavan-3-ols and 15.75 mg CGE/L of anthocyanins as well as 3.71 mmol Trolox/L of DPPH radical scavenging capacity in the clear juice. Compared with the commercially available products of pure grape juice, the new clear juice decreased the proportion of pure juice, but also reduced the additive amount of sugar. At the same time, the addition of phenolic extracts from grape pomace made the clear juice exhibit higher nutritional and bioactive properties. The clear grape juice made from 'Beda' in cold regions would meet the current consumers demand for both quality and health.

     

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