摘要
为了探究微酸性电解水(Slightly acidic electrolyzed water,SAEW)对采后西兰花贮藏品质的影响,本研究首先进行了微酸性电解水浓度的筛选,将西兰花切成均等的小花球,随机分成五组,以自来水浸泡15 min后晾干作为对照,以25、50、75和85 mg/L的微酸性电解水浸泡15 min后晾干作为不同处理组,置于15±1℃贮藏4 d,依据不同浓度微酸性电解水对采后西兰花外观品质、总叶绿素及丙二醛(MDA)含量的影响筛选最适宜的浓度。结果表明,与对照和其它浓度的SAEW处理相比,50 mg/L SAEW可更好地维持采后西兰花的外观品质及总叶绿素含量,并抑制其MDA含量的积累。进一步研究显示,与对照组相比,50 mg/L SAEW可有效维持采后西兰花的感官品质,抑制其菌落总数的升高,延缓其维生素C、可溶性糖、可溶性蛋白、可滴定酸、总硫苷和萝卜硫素含量的下降,并可有效抑制组织中亚硝酸盐含量的升高。这些结果表明50 mg/L SAEW可作为一种维持采后西兰花贮藏品质、延缓其衰老进程的有效处理方法。
To explore the effect of slightly acidic electrolyzed water(SAEW)on the storage quality of postharvest broccoli,firstly,broccoli was cut into florets,randomly divided into five groups,and treated with different concentrations(25,50,75 and 85 mg/L)of SAEW for 15 min and then drained,using tap water as control.Then,broccoli was stored at 15±1℃for 4days.The effects of different concentrations of SAEW on the appearance quality,total chlorophyll and malondialdehyde(MDA)of postharvest broccoli were analyzed,then the suitable SAEW concentration was selected for further investigation.The results showed that 50 mg/L SAEW could better maintain the appearance quality and total chlorophyll content,and inhibit the accumulation of MDA in postharvest broccoli as compared with the control and other concentrations of SAEW.Further studies indicated that 50 mg/L SAEW could effectively maintain the sensory quality,inhibit the increase of total bacterial count,delay the decrease of vitamin C,soluble sugar,soluble protein,titratable acid,total glucosinolates and sulforaphane,and suppress the increase of nitrite content in postharvest broccoli compared to the control group.These results suggest that 50 mg/L SAEW can be used as an effective treatment method due to its ability to maintain the storage quality and delay the senescence process of postharvest broccoli.
作者
韩颖
安容慧
孙莹
王馨渝
郭峰
李鹏霞
吴朝霞
李国锋
胡花丽
HAN Ying;AN Ronghui;SUN Ying;WANG Xinyu;GUO Feng;LI Pengxia;WU Zhaoxia;LI Guofeng;HU Huali(School of Food Science,Shenyang Agriculture University,Shenyang 110866,China;Institute of Facilities and Equipment in Agriculture,Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China;Key Laboratory of Cold Chain Logistics Technology for Agro-product,Ministry of Agriculture and Rural Affairs,Nanjing 210014,China)
出处
《食品工业科技》
CAS
北大核心
2023年第5期338-346,共9页
Science and Technology of Food Industry
基金
江苏省农业自主创新资金(CX(20)1008)
江苏省现代农业-面上项目(BE2022368)。
关键词
微酸性电解水
西兰花
贮藏品质
杀菌
亚硝酸盐
slightly acidic electrolytic water(SAEW)
broccoli
storage quality
sterilization
nitrite
