1种复合固体保鲜剂的研制及在杨梅非冷链物流中的应用

Development of a Composite Solid Preservative and Application in the Myrica Rubra Non-Cold Chain Logistic

研究1种复合固体保鲜剂配方及其在杨梅非冷链物流保鲜中的应用工艺。结果表明:保鲜杨梅的综合评定值:复合保鲜剂>单一抑菌剂>单一脱乙烯剂>对照。影响杨梅保鲜综合评定的重要因子排序为保鲜剂载体种类>保鲜剂量>保鲜膜类型>KMnO4用量。方差分析结果表明:保鲜剂载体对非冷链物流杨梅的硬度、可溶液性固形物含量和失重率的影响均达到显著的水平(p<0.05)。多重比较结果表明:使用石灰作载体的复合保鲜剂处理杨梅,其硬度、可溶液性固形物含量和综合评定均显著高于单一脱乙烯剂和淀粉载体复合保鲜剂(p<0.05),其失重率显著大于以硅藻土(p<0.05)和活性碳(p<0.01)为载体的复合保鲜剂。用中浓度KMnO4处理的杨梅的硬度,显著高于对照(p<0.05)和高浓度的KMnO4处理组。绳扎封口的杨梅发霉率显著低于袋口打结封口(p<0.05)。复合保鲜剂的合理配方为:10%KMnO4+10%ClO2+80%CaO(或活性碳)载体。工艺优化组合:保鲜剂量2 g,HDPE膜(或OPP膜)包装,绳扎封口。

A composite solid preservative formulations and application process in the Myrica rubra non-cold chain logistic were studied.The results show that the comprehensive assessment value of the preservation bayberry were：com-posite preservative single antibacterial agent the single deethylenizer control.Important factors of affecting the com-prehensive assessment on the bayberry preservation orders were：preservative carrier type fresh dose cling film type KMnO4 dosage.The analysis of variance showed：influence of preservative carriers on the hardness,solution of solids content and weight loss rate of the non-cold chain logistic bayberry reached significant levels（P〈0.05）.Multiple compar-isons revealed that：CaO power carrier′s composite preservative treatment bayberry,its hardness,the solution of solids and comprehensive assessment value were significantly higher than single deethylenizer agent and starch carrier′s compos-ite preservative（P〈0.05）,and its weight loss rate was significantly greater than those of celite（P〈0.05） and activated car-bon（p0.01）;the bayberry hardness,which treatment used middle concentration of KMnO4,was significantly higher than those of control（P〈0.05） and high concentrations of KMnO4.The bayberry moldy rate,which the keeping fresh bags bun-dled sealing,was significantly lower than that of the bags knotted（P〈0.05）.A composite preservative reasonable formula：10%KMnO4 ＋10% ClO2（solid）＋80% CaO（or activated carbon） carrier,application process optimization combination：com-posite preservative 2 g,using HDPE or OPP bags,and bundling sealing.