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2014•Shipin yu fajiao gongyeRequires access

The influence of different film packaging on postharvest browning of fresh lotus

Yanqin Zhu

Open publisher page 2 citations

Abstract

To investigate the influence of different films packaging on postharvest browning of fresh lotus,we studied the browning and related enzyme activity of fresh lotus with two kinds of film packages in low temperature(5 ±1℃) storage.The concentrations of CO2 and O2,browning indexes,the content of malondialdehyde(MDA) and total phenol,the activities of polyphenol oxidase(PPO),peroxidase(POD) and phenylalnine ammonialyase(PAL) were measured.The results showed that all packages could decrease browning indexes and PPO activities.However,the POD activity was not significantly affected by film packaging.P2 can significantly inhibited the increase of MDA content in fresh lotus,and maintain the higher total phenol content.In addition,P2 also can significantly decrease the PPO activity and increase the activity of PAL.In conclusion,P2 had the best effect on inhibiting the browning of fresh lotus.

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What this paper is about

To investigate the influence of different films packaging on postharvest browning of fresh lotus,we studied the browning and related enzyme activity of fresh lotus with two kinds of film packages in low temperature(5 ±1℃) storage.The concentrations of CO2 and O2,browning indexes,the content of malondialdehyde(MDA) and total phenol,the activities of polyphenol oxidase(PPO),peroxidase(POD) and phenylalnine ammonialyase(PAL) were measured.The results showed that all packages could decrease browning indexes and PPO activities.However,the POD activity was not significantly affected by film packaging.P2 can significantly inhibited the increase of MDA content in fresh lotus,and maintain the higher total phenol content.In addition,P2 also can significantly decrease the PPO activity and increase the activity of PAL.In conclusion,P2 had the best effect on inhibiting the browning of fresh lotus.

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Available abstract

To investigate the influence of different films packaging on postharvest browning of fresh lotus,we studied the browning and related enzyme activity of fresh lotus with two kinds of film packages in low temperature(5 ±1℃) storage.The concentrations of CO2 and O2,browning indexes,the content of malondialdehyde(MDA) and total phenol,the activities of polyphenol oxidase(PPO),peroxidase(POD) and phenylalnine ammonialyase(PAL) were measured.The results showed that all packages could decrease browning indexes and PPO activities.However,the POD activity was not significantly affected by film packaging.P2 can significantly inhibited the increase of MDA content in fresh lotus,and maintain the higher total phenol content.In addition,P2 also can significantly decrease the PPO activity and increase the activity of PAL.In conclusion,P2 had the best effect on inhibiting the browning of fresh lotus.

Key concepts: Browning, Polyphenol oxidase, Lotus, Point of delivery, Postharvest, Food science, Chemistry, Peroxidase

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