The anthocyanins content of the bakery jam was the most important indicator to judge the quality of jam products, thus the
anthocyanins content was used as the evaluation indicator. As shown in Table 2, the influences of the processing variables on the indicators were determined using range (R) and level analyses. Results of the range analysis showed that the effects of the four factors on the retention of anthocyanins were in the following order: the amount of modified starch > baking time > the variety of modified starch > baking temperature (RB > RD > RA > RC). K represented the importance of different levels of the same factor. The higher the K value was, the greater effects were obtained at this level of this factor. The preferred conditions were obtained with the combination of the following factors: A3B1C2D3, i.e., modified corn starch (MS3), 10% of the modified starch, baking time of 20 min, and temperature of 180 C. Consequently, the modified corn starch (MS3) was used for the further study.
The anthocyanins content of the bakery jam was the most important indicator to judge the quality of jam products, thus theanthocyanins content was used as the evaluation indicator. As shown in Table 2, the influences of the processing variables on the indicators were determined using range (R) and level analyses. Results of the range analysis showed that the effects of the four factors on the retention of anthocyanins were in the following order: the amount of modified starch > baking time > the variety of modified starch > baking temperature (RB > RD > RA > RC). K represented the importance of different levels of the same factor. The higher the K value was, the greater effects were obtained at this level of this factor. The preferred conditions were obtained with the combination of the following factors: A3B1C2D3, i.e., modified corn starch (MS3), 10% of the modified starch, baking time of 20 min, and temperature of 180 C. Consequently, the modified corn starch (MS3) was used for the further study.
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