低糖杏脯的糖液配方工艺优化

Optimization of sugar solution formulation of low-sugar preserved apricot

  • 摘要:
    目的 本研究以赛买提鲜杏为主要原料,开发具有原果特征风味的低糖杏脯产品,进行工艺配方的优化。
    方法 采用单因素和响应面试验相结合的方法以杏脯的感官评分为主要指标,使用不同糖醇与蔗糖进行糖液复配,建立糖液质量分数、代糖的质量分数及不同代糖糖醇间质量比的优化模型,最后对产品理化指标进行品质测定和模型验证。
    结果 通过模型系数显著性检验,得到以感官评分为响应值的主效应关系为:替代蔗糖添加量>总糖液添加量>糖醇间的比例。制作杏脯的最佳工艺条件为糖液总添加量30%,糖醇添加量30%,异麦芽糖醇、木糖醇、赤藓糖醇3种糖醇间的质量比为1∶2∶1,该工艺下测得杏脯感官评分为89.8分,与模型预测值较一致。
    结论 此模型较好地预测低糖杏脯的工艺配方。在此条件下得到口感和品质俱佳的杏脯产品,其感官评分达89.8,具有原果风味,与当前大众对低糖食品的消费需求相契合,为新疆杏产业高附价值产品开发提供参考。

     

    Abstract:
    Objective This study takes the fresh apricot as the main raw material, develops the low-sugar apricot products with the characteristic flavor of raw fruit, and optimizes the process formula.
    Methods Using the method of combining single factor and response surface test with apricot breast sensory score as the main index, using different sugar alcohol and sucrose sugar complex, establish the sugar mass fraction, sugar mass fraction, between different generation of sugar alcohol mass ratio optimization model, finally to the physical and chemical index of product quality determination and model validation.
    Results Through the significance test of model coefficient, the main effect relationship with sensory score as the response value was: the proportion of alternative sucrose added> total sugar solution added> sugar alcohol. The best process conditions for making apricot are 30% of the total amount of sugar liquid, 30% of sugar alcohol, and the mass ratio between the three sugar alcohols of isomaltol, xylitol and erythritol is 1∶2∶1. The sensory score of apricot is 89.8, which is consistent with the predicted value of the model.
    Conclusion The mathematical model predicts the process formula of low sugar apricot. Under this condition, the sensory score of preserved apricot products with good taste and quality has a sensory score of 89.8, with raw fruit flavor, which is in line with the current public consumer demand for low-sugar food, and provides reference for the development of high value products in Xinjiang apricot industry.

     

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