The effect of application of cellulose-based edible coating, hydroxypropyl methylcellulose (HPMC) to mature-green tomatoes on the firmness and color was investigated. Tomatoes were stored at 20℃ for up to 18 days. Fi...The effect of application of cellulose-based edible coating, hydroxypropyl methylcellulose (HPMC) to mature-green tomatoes on the firmness and color was investigated. Tomatoes were stored at 20℃ for up to 18 days. Firmness decreased as storage time increased in all treatments. However, application of HPMC edible coating delayed softening of tomatoes during 18 days of storage at 20℃ . At days 7, 13 and 18,the firmness of tomatoes coated with HPMC was significantly ( P ≤ 0.05) greater than the firmness of uncoated tomatoes. The study also confirmed that HPMC coatings could significantly (P≤0.05) delay the changes in color of tomatoes stored at 20℃ . The ripening of tomatoes from the pink stage to the red stage was successfully retarded. HPMC coating could extend the shelf life of fresh tomatoes. The retardation of the rate of loss of firmness could reduce the economic loss that would result from spoilage by mechanical injury during transportation of tomatoes.展开更多
Due to extensive harvesting,the ecological environment of Dendrobium officinale has been destroyed,and there are very few wild D.officinale today.As the tissue culture technology of D.officinale continues to mature,th...Due to extensive harvesting,the ecological environment of Dendrobium officinale has been destroyed,and there are very few wild D.officinale today.As the tissue culture technology of D.officinale continues to mature,there are more and more imitation,wild cultivation,greenhouse cultivation and other large-scale production of D.officinale to meet the market demand,but the storage and preservation of fresh products is a big problem.The existing problems in storage of D.officinale and its preservation technology are discussed,so as to provide some reference for the storage and preservation of D.officinale fresh products.展开更多
In this experiment," Gala" apples were used as test materials,and 1-MCP treatment and fresh-keeping film packaging were used for storage at room temperature.The results showed that the storage effects of 1-M...In this experiment," Gala" apples were used as test materials,and 1-MCP treatment and fresh-keeping film packaging were used for storage at room temperature.The results showed that the storage effects of 1-MCP treatment and fresh-keeping film packaging were better than those of the control.Moreover,1-MCP treatment was better than fresh-keeping film packaging in hardness,soluble solids content,titratable acid content,and inhibition of ethylene release.展开更多
The cold storage period of purple cabbage packaged with the respirat ory cling film may last 150 days at 2℃by dipping the root with 200×iprodione. Normal temperature storage and quick-freezing storage(-18℃) are...The cold storage period of purple cabbage packaged with the respirat ory cling film may last 150 days at 2℃by dipping the root with 200×iprodione. Normal temperature storage and quick-freezing storage(-18℃) are not suitable for purple cabbage.展开更多
文摘The effect of application of cellulose-based edible coating, hydroxypropyl methylcellulose (HPMC) to mature-green tomatoes on the firmness and color was investigated. Tomatoes were stored at 20℃ for up to 18 days. Firmness decreased as storage time increased in all treatments. However, application of HPMC edible coating delayed softening of tomatoes during 18 days of storage at 20℃ . At days 7, 13 and 18,the firmness of tomatoes coated with HPMC was significantly ( P ≤ 0.05) greater than the firmness of uncoated tomatoes. The study also confirmed that HPMC coatings could significantly (P≤0.05) delay the changes in color of tomatoes stored at 20℃ . The ripening of tomatoes from the pink stage to the red stage was successfully retarded. HPMC coating could extend the shelf life of fresh tomatoes. The retardation of the rate of loss of firmness could reduce the economic loss that would result from spoilage by mechanical injury during transportation of tomatoes.
文摘Due to extensive harvesting,the ecological environment of Dendrobium officinale has been destroyed,and there are very few wild D.officinale today.As the tissue culture technology of D.officinale continues to mature,there are more and more imitation,wild cultivation,greenhouse cultivation and other large-scale production of D.officinale to meet the market demand,but the storage and preservation of fresh products is a big problem.The existing problems in storage of D.officinale and its preservation technology are discussed,so as to provide some reference for the storage and preservation of D.officinale fresh products.
文摘In this experiment," Gala" apples were used as test materials,and 1-MCP treatment and fresh-keeping film packaging were used for storage at room temperature.The results showed that the storage effects of 1-MCP treatment and fresh-keeping film packaging were better than those of the control.Moreover,1-MCP treatment was better than fresh-keeping film packaging in hardness,soluble solids content,titratable acid content,and inhibition of ethylene release.
文摘The cold storage period of purple cabbage packaged with the respirat ory cling film may last 150 days at 2℃by dipping the root with 200×iprodione. Normal temperature storage and quick-freezing storage(-18℃) are not suitable for purple cabbage.