title: Browning inhibition and quality preservation of button mushroom (Agaricus bisporus) by essential oils fumigation treatment.
abstract: The effect of essential oil fumigation treatment on browning and postharvest quality of button mushrooms (Agaricus bisporus) was evaluated upon 16 days cold storage. Button mushrooms were fumigated with essential oils, including clove, cinnamaldehyde, and thyme. Changes in the browning index (BI), weight loss, firmness, percentage of open caps, total phenolics, ascorbic acid, microbial activity and activities of polyphenol oxidase (PPO), phenylalanine ammonia lyase (PAL), and peroxidase (POD) were measured. The results indicated that all essential oils could inhibit the senescence of mushrooms, and the most effective compound was cinnamaldehyde. Fumigation treatment with 5 μl l⁻¹ cinnamaldehyde decreased BI, delayed cap opening, reduced microorganism counts, promoted the accumulation of phenolics and ascorbic acid. In addition, 5 μl l⁻¹ cinnamaldehyde fumigation treatment inhibited the activities of PPO and POD, and increased PAL activity during the storage period. Thus, postharvest essential oil fumigation treatment has positive effects on improving the quality of button mushrooms.
authors.affiliation: College of Food Science and Biotechnology, Zhejiang Gongshang University, Food Safety Key Lab of Zhejiang Province, Hangzhou 310035, PR China.
authors.forename: Mengsha
authors.initials: M
authors.lastname: Gao
authors.forename: Lifang
authors.initials: L
authors.lastname: Feng
authors.forename: Tianjia
authors.initials: T
authors.lastname: Jiang
mesh_terms: D000364:Agaricus / Q000737:chemistry* / Q000187:drug effects / Q000201:enzymology; D004156:Catechol Oxidase / Q000032:analysis; D003116:Color; D005519:Food Preservation / Q000379:methods*; D005651:Fumigation; D005656:Fungal Proteins / Q000032:analysis; D009822:Oils, Volatile / Q000494:pharmacology*; D009195:Peroxidase / Q000032:analysis; D010650:Phenylalanine Ammonia-Lyase / Q000032:analysis; D010938:Plant Oils / Q000494:pharmacology*; D027842:Syzygium / Q000737:chemistry; D046930:Thymus Plant / Q000737:chemistry
chemical_list: D005656:Fungal Proteins; D009822:Oils, Volatile; D010938:Plant Oils; D004156:Catechol Oxidase; D009195:Peroxidase; D010650:Phenylalanine Ammonia-Lyase
keywords: Browning; Button mushroom; Essential oil; Microbiological quality; Storage life