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响应面法优化低糖鲜杏果酱配方的研究

Research on Formula Optimization of Low-Sugar Fresh Apricot Jam by Response Surface Method

  • 摘要: 为研制口味独特、营养均衡的低糖鲜杏果酱,以新疆赛买提鲜杏为原料,利用单因素试验和响应面试验对低糖鲜杏果酱配方进行优化研究,同时测定低糖鲜杏果酱的理化指标,并与市售果酱进行对比分析。结果表明:杏果在杏果浆中的添加量为40%,以杏果浆质量计,白砂糖添加量25%,柠檬酸添加量0.15%,果胶添加量1.0%时得到的鲜杏果酱感官评分(91.60分)最高,果酱杏味浓郁、色泽均匀、口味最佳。采用该工艺配方制作的低糖鲜杏果酱可溶性固形物含量为40.05°Brix,p H为3.53,总酸含量为1.31%,总糖含量为32.15%,水分含量为37.08%,VC含量为5.86 mg/100 g,蛋白质含量为0.65%。研究可为杏果精深加工提供理论参考。

     

    Abstract: In order to develop the low-sugar fresh apricot jam with unique taste and balanced nutrition, the formula of low-sugar fresh apricot jam was optimized by single factor and response surface tests with Xinjiang Srimati fresh apricot as raw material, and the physical and chemical indices of low-sugar fresh apricot jam were measured and compared with commercial jam. The results showed that the sensory score of fresh apricot jam was the highest(91.60 points) under apricot fruit addtion of 40%, along with white sugar addtion of 25%, citric acid addtion of 0.15% and pectin addition of 1.0%(in terms of apricot pulp mass). The taste of fresh apricot jam was the best with strong apricot flavor and uniform color. The soluble solid content of low-sugar fresh apricot jam prepared by this process formula was40.05 ° Brix, the p H value was 3.53, and the contents of total acid, total sugar, moisture, VC, and protein were1.31%, 32.15%, 37.08%, 5.86 mg/100 g, 0.65%, respectively. The research could provide theoretical reference for the deep processing of apricots.

     

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