PT  - JOURNAL ARTICLE
AU  - Lijun Nan
AU  - Shaobo Chen
AU  - Yashan Li
AU  - Ya Liu
AU  - Ying Jiang
AU  - Yan Yang
AU  - Chengdong Xu
AU  - Guogang Chen
TI  - Parsing of compositions and microstructure characteristics for rust-spots of pear pericarp
AID  - 10.1101/142877
DP  - 2017 Jan 01
TA  - bioRxiv
PG  - 142877
4099  - http://biorxiv.org/content/early/2017/05/27/142877.short
4100  - http://biorxiv.org/content/early/2017/05/27/142877.full
AB  - The commercial value of Kurles pears pericarp, a popular and favored fruit for its unique aroma and refreshingly crisp texture, had sharply decreased because of a rust breakout of the beloved pear in China during the atmosphere-controlled storage. High performance liquid chromatography (HPLC) and liquid chromatography-mass spectrometry (LC-MS) were used to analyze rust spots on the pericarp of Kurle pears. Therefore, the chemical compounds of four various eluates, originating from the rust-colored substance collected from the pears pericarp effected, were identified successfully for the first time, which were just rhein, aloe-emodin, chrysophanol and emodin, respectively. Taken together with microstructure characteristics for rust-spots of Kurle pear pericarp, it was no doubt that these eluates were the main factors affecting the rust spots on the pericarp of the Kurle pears during the atmosphere-controlled storage, which was a sign and consequence resisting the undesirable stress of the external environment.