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投稿时间:2019-07-07
投稿时间:2019-07-07
中文摘要: 该文探究在4 ℃贮藏条件下0、2.14、6.43、10.72 mg/m3 不同浓度的臭氧对采后西兰花贮藏品质的影响。结果表明,与 0 mg/m3 相比,臭氧浓度为 2.14、6.43、10.72 mg/m3 对采后西兰花多酚氧化酶酶(polyphenol oxidase,PPO)、1-氨基环丙烷-1-羧酸合成酶(1-aminocyclopropane-1-carboxylic acid synthase,ACS)和1-氨基环丙烷-1-羧酸氧化酶(1-aminocyclopropane-1-carboxylate oxidase,ACO)活性均具有抑制效果,同时促进可滴定酸(titratable acid,TA)和维生素C(vitamin C,VC)在贮藏前期的生成,使还原糖、叶绿素含量维持在较高水平,且具有较好的保绿效果。研究表明,不同浓度的臭氧处理对西兰花均具有一定的贮藏保鲜效果,其中,10.72 mg/m3 的臭氧浓度对延缓采后西兰花的衰老和延长贮藏期效果最好。
Abstract:The effects of 0,2.14,6.43 mg/m3 and 10.72 mg/m3 concentration of ozone on the storage quality of postharvest broccoli were studied.The results showed that compared with 0 mg/m3,ozone concentration of 2.14,6.43 mg/m3 and 10.72 mg/m3 had inhibitory effects on polyphenol oxidase(PPO),1-aminocyclopropane-1-carboxylic acid synthase (ACS)and 1-aminocyclopropane-1-carboxylate oxidase (ACO)activities of postharvest broccoli,and promoted the formation of titratable acid(TA)and vitamin C(VC)in the pre-storage period,so that the contents of reducing sugar and chlorophyll could be maintained in the pre-storage period which has a high level and good green-keeping effect.The results showed that ozone treatment of different con-centrations had a certain effect on broccoli storage.In a word,ozone treatment of different concentration has certain effect on broccoli storage,among which 10.72 mg/m3 ozone concentration has the best effect on delaying the senescence of postharvest broccoli and prolonging the storage period.
keywords: ozone treatment broccoli maintain green storage quality
文章编号:201923002 中图分类号: 文献标志码:
基金项目:国家自然科学基金青年科学基金项目(31501547);国家重点研发计划(2016YFD0400903-05、2018YFF0213605-2);天津市林果现代产业技术体系创新团队(ITTFPRS2018009);天津市科技计划项目(17YFYZCG00010);天津市自然科学基金青年项目(16JCQNJC14800);天津市农业科技成果转化与推广项目(201701100、201602090);天津市农业科学院院长基金(17014、17012);贵州省科技计划项目(黔科合成果[2016]4035号);天津市自然科学基金项目(16JCYBJC42800);天津市林果现代产业技术体系创新团队(ITTFPRS2018010)
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