Starch is used here together with zeolite for production of films to coat guava fruit. Starch and starch/zeolite films were prepared by using gelatin and sorbitol. Guava fruit were coated by means of starch solution and starch solution containing zeolite NaA which had been synthesized from kaolin. Physical-chemical analyses have shown that the used films helped to maintain the natural characteristics of the fruit such as high levels of ascorbic acid for longer periods.
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Bessa et al. (2015) studied this question.
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