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In order to explore the influence of papaya juice marination on the flavor formation of boiled Wenchang chicken, the physicochemical indexes of e raw chicken breast and drumstick meat were detected, and the changes in the volatile flavor and taste substances of boiled chicken breast and drumstick meat with and without papaya juice marination were analyzed. Results showed that the contents of proteins and reducing sugar were significantly higher and fat content was significantly lower in raw chicken breast meat than in drumstick meat (P 0.05). The types and contents of aldehydes and alcohols in marinated chicken drumsticks were significantly increased, and nine new aldehydes were produced, including (E)-2-heptanal, (E)-2-octenal, (E)-2-nonaldehyde, (Z)-2-decanal, 2-butyl-2-octenal, 4-ethylbenzaldehyde, 2,5-dimethylbenzaldehyde, (E)-2-undecenal, and (E,Z)-2,4-decandienal. However, there was no significant change in volatile compounds in chicken breast before and after papaya juice marination. The electronic nose could distinguish the difference of chicken drumsticks but not of chicken breast before and after papaya juice marination. The contents of free amino acids and flavor nucleotides in chicken breast and drumstick meat were significantly increased after papaya juice pickling. In conclusion, papaya juice can increase the contents of nucleotides and free amino acids in breast and drumstick meat of Wenchang chicken, increase the contents of volatile flavor substances in chicken drumstick, and impart new flavor substances such as aldehydes and alcohols to drumstick meat.

Objective: To explore the reasonable therapeutic strategy for different types of epicanthus., Methods: Patients with epicanthus were classificated according to the shape, extent and inner canthal distance and treated with different methods appropriately. Modified asymmetric Z plasty with two curve method was used in lower eyelid type epicanthus, inner canthus type epicanthus and severe upper eyelid type epicanthus. Moderate upper epicanthus underwent '-' shape method. Mild Upper epicanthus in two conditions which underwent nasal augumentation and double eyelid formation with normal inner canthal distance need no correction surgery. The other mild epicanthus underwent '-' shape method., Results: A total of 66 cases underwent the classification and the appropriate treatment. All wounds healed well. During 3 to 12 months follow-up period, all epicanthus were corrected completely with natural contour and unconspicuous scars. All patients were satisfied with the results., Conclusions: Classification of epicanthus hosed on the shape, extent and inner canthal distance and correction with appropriate methods is a reasonable therapeutic strategy.