Effect of nanocomposite-based packaging on microstructure and energy metabolism of Agaricus bisporus. (15th March 2019)

• Record Type: Journal Article
• Authors: Wu, Yuanyue; Hu, Qiuhui; Li, Zhixiao; Pei, Fei; Mugambi Mariga, Alfred; Yang, Wenjian
• Is Part Of: Food chemistry. Volume 276(2019)
• Page Start: 790
• Page End: 796
• Publication Date: 2019-03-15
• Subjects: Malondialdehyde (PubChem CID: 10964) -- O2− (PubChem CID: 5359597) -- H2O2 (PubChem CID: 784) -- CO2 (PubChem CID: 280) -- Ethanol (PubChem CID: 702) -- Acetaldehyde (PubChem CID: 177) -- ATP (PubChem CID: 5957) -- ADP (PubChem CID: 6022) -- AMP (PubChem CID: 6083) -- Oxalic acid (PubChem CID: 971); Agaricus bisporus -- Nanocomposite-based packaging material -- Respiration rate -- Energy metabolism -- Microstructure -- Shelf-life; Food -- Analysis -- Periodicals; Food -- Composition -- Periodicals; 664
• DOI: 10.1016/j.foodchem.2018.10.088
• Languages: English
• ISSNs: 0308-8146

Abstract

Highlights: Nano-PM delayed the postharvest deterioration of A. bisporus . Nano-PM reduced ROS level by activating antioxidant enzyme activities. ATP and EC contents were increased attributed to lower respiration rate. The microstructure of A. bisporus was maintained by inhibition of ROS accumulation. Abstract: Rapid deterioration of postharvest Agaricus bisporus is a serious problem. Measures to improve the shelf-life are of great importance. Therefore, we used a nanocomposite-based packaging material (Nano-PM) containing nano-TiO2, nano-SiO2, nano-Ag and attapulgite to study its effect on microstructure and energy metabolism of A. bisporus . Nano-PM reduced the oxidation of lipids and proteins by activating antioxidant enzyme activities and inhibiting the accumulation of ROS, thereby maintained high level of energy status. Meanwhile, ATP content and energy charge of A. bisporus in Nano-PM increased through the energy metabolism system. This was attributed to the lower respiration rate and higher mitochondrial respiratory enzyme activities. These results indicated that Nano-PM could maintain the dense and intact microstructure of A. bisporus thus improve its shelf-life.