Table of Contents Author Guidelines Submit a Manuscript
Journal of Spectroscopy
Volume 2016 (2016), Article ID 7813405, 8 pages
http://dx.doi.org/10.1155/2016/7813405
Research Article

Ultraviolet Spectroscopy Used to Fingerprint Five Wild-Grown Edible Mushrooms (Boletaceae) Collected from Yunnan, China

1Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, Kunming 650200, China
2Yunnan Technical Center for Quality of Chinese Materia Medica, Kunming 650200, China
3College of Traditional Chinese Medicine, Yunnan University of Traditional Chinese Medicine, Kunming 650500, China
4College of Resources and Environment, Yuxi Normal University, Yuxi 653100, China
5College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China

Received 22 June 2016; Accepted 24 October 2016

Academic Editor: Khalique Ahmed

Copyright © 2016 Yan Li et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Nowadays, wild-grown edible mushrooms which are natural, nutritious, and healthy get more and more popular by large consumers. In this paper, UV spectra of different Boletaceae mushrooms with the aid of partial least squares discriminant analysis (PLS-DA) and hierarchical cluster analysis (HCA) were shown to be a practical and rapid method for discrimination purpose. The specimens of Boletus edulis, Boletus ferrugineus, Boletus tomentipes, Leccinum rugosiceps, and Xerocomus sp. were described based on the UV spectra. From the results, all the specimens were characterized by strong absorption at the wavelengths of 274 and 284 nm and showed the shoulder at 296 nm. However, changes could be seen in the peak heights at the same wavelength for different samples. After analyzing by chemometrics, visual discrimination among samples was presented and the relationships among them were also obtained. This study showed that UV spectroscopy combined with chemometrics methods could be used successfully as a simple and effective approach for characterization of these five wild-grown edible mushrooms at species and genus levels. Meanwhile, this rapid and simple methodology could also provide reference for the discrimination of edible mushrooms.