摘要
为明确外源乙烯和成熟抑制剂对采后芒果质构性能的影响效果,以“红玉”芒果为试验材料,在15℃,相对湿度85%环境下贮藏,分别于采后0、4、8、12、16、20、24 d采用质地多面分析(TPA)法对乙烯、1-甲基环丙烯(1-MCP)和赤霉素(GA_(3))处理的果实进行质构的测定。结果表明:乙烯处理后,芒果果实的硬度、脆度、咀嚼性、胶着性、弹性、黏聚性、回复性快速下降,而黏性快速上升,并且随着乙烯浓度的增加,脆度下降的更快,而咀嚼性和胶着性反而下降得更慢;1-MCP和GA_(3)处理均能使芒果果实的硬度、脆度、咀嚼性、胶着性、弹性、黏聚性、回复性保持较高的水平,延缓黏性的上升;相关性分析表明,硬度和脆度、咀嚼性、回复性之间呈极显著正相关,黏性分别与咀嚼性、胶着性呈极显著负相关。采用TPA法能很好地评价芒果果实的质构。乙烯处理能加速芒果质构的变化,1-MCP和GA_(3)处理能延缓采后芒果果实的质构变化,且以1-MCP处理效果较好。
The aim of this study is to determine the effects of exogenous ethylene and ripening inhibitors on textural properties of mango fruits after harvest.Therefore,the‘Hongyu’mango fruits were used as experimental materials,and stored at 15℃and 85%relative humidity after treated with ethylene,1-methylcyclopropene(1-MCP)and gibberellin(GA_(3)).Then the textures of postharvest fruits were determined at 0,4,8,12,16,20 and 24 d by Texture Profile Analysis(TPA)method.Results showed that after ethylene treatments,the hardness,fracturability,chewiness,gumminess,springiness,cohesiveness and resilience of mango fruits were decreased rapidly,while the adhesiveness was increased quickly.Moreover,the fragility was descended more rapidly with the increase of ethylene concentrations,while the chewiness and adhesiveness were reduced more slowly.The 1-MCP and GA_(3) treatments could keep the hardness,fracturability,chewiness,gumminess,springiness,cohesiveness and resiliency of mango fruits at high levels,and delay the rise of adhesiveness The correlation analysis showed that there were significant positive correlations between hardness and fracturability,chewiness,resilience,while there were remarkable negative correlations between adhesiveness and chewiness,gumminess.The texture of mango fruits could be well evaluated by TPA method.Exogenous ethylene treatment could accelerate the textural changes of mango fruits,while 1-MCP and GA_(3) treatments could delay textural changes of postharvest fruits,and 1-MCP treatment showed superior preservation effects.
作者
马冀恒
李雯
陈明敏
曾教科
MA Ji-heng;LI Wen;CHEN Ming-min;ZENG Jiao-ke(College of Horticulture,Hainan University,Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province,Haikou 570228,China)
出处
《保鲜与加工》
CAS
2021年第12期10-15,共6页
Storage and Process
基金
国家自然科学基金面上项目(32072275)
海南省研究生创新科研课题(Hys2019-93)。
