Identification of volatile components form fresh, sun-dried and shade-dried Musa nana Lour. flowers and bracts by Headspace Solid-Phase Microextraction and Gas Chromatography-Mass Spectrometry

The flower of Musa nana Lour., also named 'Xiangbaohua' in Chinese, is a commonly used herbal drug in traditional Chinese medicine (TCM). Musa nana Lour. flower and bract were usually discarded after banana fruit ripening, which leaded to resource waste and environmental pollution. It can not only protect the environment but also reduce the waste of resources to improve the utilization of the banana (Musa nana Lour.) flower and bract, so we analyzed volatile compounds of fresh, sun-dried and shade-dried Musa nana Lour. flowers and bracts by gas chromatography-mass spectrometry (GC-MS) technique with head-space solid micro-extraction (HS-SPME). The number of volatile ingredients from three kinds of Musa nana Lour. flowers were identified 29, 39 and 43, respectively. Thirteen common constituents were found in all of the three flowers. While three kinds of Musa nana Lour. bracts were identified 30, 36 and 37 volatile ingredients, respectively. In addition, twenties common constituents were found in all of the three bracts. It can be seen the compounds between flowers and bracts in different drying conditions were different apparently. This is the first ever report revealing the differences of volatile components between Musa nana Lour. flowers and bracts in different drying conditions.