内层涂保鲜剂纸板包装盒对水蜜桃的保鲜效果

为了研究内涂保鲜剂纸板包装盒的保鲜效果,以宁波奉化水蜜桃为试验对象,开展了4组不同包装和贮藏温度组合的试验:普通纸板盒包装,贮藏于室温下(25℃);普通纸板盒包装,贮藏于4～6℃;保鲜纸板盒包装,贮藏于室温下(25℃);保鲜纸板盒包装,贮藏于4～6℃;未包装,贮藏于4～6℃,作为低温对照;未包装,常温对照;共6组保鲜效果试验。结果表明,纸板内层用乙烯吸收剂(白硅石粉)、0.8%的乳酸链球菌素和0.5%的纳他霉素溶液涂层可有效抑制桃果实的呼吸强度,保持果肉硬度以及桃的风味;低温贮藏可延缓果实衰老,抑制硬度变化的效果。

Effect of paperboard packaging inner coated with preservation agents on fresh-keeping of honey peach

To investigate the preservation effect of paperboard packaging box with inner coating preservation agents, honey peach (Prunus persica L. cv."fenghua") was studied. The experimental treatments included paperboard packaging storaged at room temperature (25℃), paperboard packaging storaged at 4-6℃, packaging by the paperboard with inner coating layer stored at room temperature (25℃), packaging by the paperboard with inner coating layer stored at 4-6℃, no packaging storaged at 4-6℃ as low temperature control group, and no packaging storage at room temperature as normal control group. The results show that the paperboard packaging box with inner coating preservation agents of 0.8% nisin and 0.5% natamycin could effectively inhibit the respiration of Honey peach, maintain the peach flavor and flesh firmness, and can inhibit the texture changes effectively.