CAJ | 학술논문

分别采用1%、2%、3%不同浓度莲子淀粉膜液(含天然防腐剂nisin)对鲜切菠萝片进行涂膜处理,再装入塑料盒中,用PE薄膜密封,于(5±1)℃贮藏.在贮藏过程中,对鲜切菠萝的成熟度、流汁率、色泽、硬度和细菌菌落总数等相关指标进行评价,研究可食性莲子淀粉涂膜对鲜切菠萝品质的影响.结果表明,涂膜处理能延缓鲜切菠萝的衰老、褐变、软化,有效抑制微生物的生长.2%、3%涂膜处理组贮藏10 d内,莲子淀粉膜与nisin的协同作用可使菌落总数控制在105以下,符合鲜切果蔬的食品卫生要求.因此,采用莲子淀粉涂膜处理能有效保持鲜切菠萝的品质.
분별채용1%、2%、3%불동농도련자정분막액(함천연방부제nisin)대선절파라편진행도막처리,재장입소료합중,용PE박막밀봉,우(5±1)℃저장.재저장과정중,대선절파라적성숙도、류즙솔、색택、경도화세균균락총수등상관지표진행평개,연구가식성련자정분도막대선절파라품질적영향.결과표명,도막처리능연완선절파라적쇠로、갈변、연화,유효억제미생물적생장.2%、3%도막처리조저장10 d내,련자정분막여nisin적협동작용가사균락총수공제재105이하,부합선절과소적식품위생요구.인차,채용련자정분도막처리능유효보지선절파라적품질.
Influence of edible lotus seed starch coating on quality of fresh-cut pineapple was studied. Fresh-cut pineapple was coated with 1%, 2% or 3% lotus seed starch pasting incorporating nisin as a natural antimicrobial agent; placed into plastic trays, and ovet-wrapped with PE film and then stored at (5 ± 1) ℃. Changes in ripening index, juice leakage, colour, firmness and microbial growth were evaluated over time. The results showed that lotus seed starch coating retarded senescence, browning and softening. It also inhibited the growth of microorganisms effectively. The total microbial count coated with 2%, 3% lotus seed starch could be controlled under 105 (less than 105 was in line with fresh-cut food hygiene requirements) during ten days due to the synergistic effect of lotus seed starch coating and nisin. The results revealed that lotus seed starch coating maintained the quality attributes of fresh-cut pineapple effectively.