FOOD SCIENCE ›› 2010, Vol. 31 ›› Issue (8): 260-263.doi: 10.7506/spkx1002-6300-201008060

• Packaging & Storage • Previous Articles     Next Articles

Effect of Harvesting Time on Browning of ‘Okubo’ Peach Pulp during Storage

LI Li-mei,GUAN Jun-feng*,FENG Yun-xiao,JI Hua,SUN Yu-long   

  1. Institute of Genetics and Physiology, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, China
  • Received:2009-05-27 Online:2010-04-15 Published:2010-12-29
  • Contact: GUAN Jun-feng*, E-mail:junfeng-guan@263.net

Abstract:

To explore the effect of harvesting time on browning of ‘Okubo’ peach pulp, the changes in total content of phenolic compounds and activities of polyphenol oxidase (PPO) and peroxidase (POD) in ‘Okubo’ peaches collected at different harvesting times were examined during storage at 0 ℃ or 25 ℃‘. Okubo’ peaches harvested earlier exhibited higher total content of phenolic compounds and PPO and POD activities and more severe browning. This indicates that an appropriate delay of harvesting time attenuates the browning of ‘Okubo’ peach pulp. The lowest degree of browning was observed in ‘Okubo’ peach pulp with 80% degree of maturity (harvested on July 22 in Xinji City, Hebei Province).

Key words: harvesting time, ‘Okubo&rsquo, peach, pulp browning, storage

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