【摘要】 研究形成了以通风措施控制乙烯产生和积累的结球白菜(Brassica Pekinensis R.)贮藏新技术。其技术特点是:收获后不晒菜,使贮藏中乙烯产生量和呼吸强度分别比对照降低了一半左右,并减少晒菜损耗15%。利用自然冷源选择适温通风,菜温在入害后3-7天内迅速下降,并在整个贮藏期中保持恒定适温,排除并阻遏了贮藏叶球乙烯的产生和积累。应用此技术生产示范贮藏三个月损耗较传统窖藏下降12.3%.维生素C和可溶性蛋白保存率分別比对照高5%和18%,粗纤维降低18%、当年增收为投入的29.6倍。更多还原

【Abstract】 New storage technique of controlling ethylene production and accumulation for Chinese cabbage (Brassica pekinensis Rupr.) by ventilation has been developed. It is based on the conclusion that ethylene is the cause of postharvest abscission and other losses of Chinese cabbage during storage. The characteristics of the new technique were identified as follows:Sun-dry is abolished with the new technique, which decreases weight loss 15% and reduces ethylene evolution and respiration rate from 0.15 to 0.04 μl/kg.h and 7.7 to 3.8 ml/kg.h respectively. Moving and trimming Chinese cabbage heads of traditional cellar storage technique are replaced by conducting ventilation with adaptable temperature of the natural cool air. That results from the rapid temperature declining of stored heads within 3-7 days and maintaining the optimal temperature during the whole storage period. Ethylene produced and accumulated from stored heads is eliminated and prevented, Commercial storage demonstration of this technique for 3 monthes was compared with the traditional cellar storage, the storage loss reduced 12.3%, maintenance of ascorbic acid and soluble protein were 5% and 18% higher and crude fiber content reduced 18%. And the income was 29.6 times of the input.更多还原