Edible coating based on Alyssum homalocarpum seed gum (AHSG) and chitosan for coating of fresh apricot was optimized using response surface methodology (RSM). The independent variables included concentrations of AHSG and chitosan in coating solution. The response variables studied were total soluble solid, weight loss, titratably acidity, pH, reducing sugar, moisture content, and firmness. Results indicated that RSM models were significantly (p < .05) qualified for all response variables, except for total soluble solid and titratable acidity. The regression models demonstrated R² ranging from .78 to .99. AHSG concentration influenced the weight loss, pH, and firmness, while chitosan concentration had an effect on pH and moisture content. This study showed that the coating can improve apricot firmness and stability in terms of weight loss, pH, and moisture content. The study suggested that a combination of AHSG 1.02% (w/w) and chitosan 0.33% (w/w) is the best one to achieve the desirable responses.

中文翻译：

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优化食用香雪球种子胶-壳聚糖包衣配方，提高杏的采后贮藏潜力和品质（李属）

使用响应表面方法（RSM）优化了基于香雪球种子胶（AHSG）和壳聚糖的可食涂层，用于新鲜杏子的涂层。自变量包括涂料溶液中AHSG和壳聚糖的浓度。研究的响应变量为总可溶性固形物，重量减轻，可滴定的酸度，pH，还原糖，水分含量和硬度。结果表明 ，除了总可溶性固形物和可滴定的酸度外，RSM模型对于所有响应变量均具有显着（p <.05）的资格。回归模型表明R ²范围从.78到.99。AHSG的浓度影响重量，pH和硬度，而壳聚糖的浓度对pH和水分含量有影响。这项研究表明，该涂层可以在重量减轻，pH和水分含量方面提高杏的硬度和稳定性。研究表明，AHSG 1.02％（w / w）和壳聚糖0.33％（w / w）的组合是获得理想响应的最佳方法。