Temperature controlled microcapsule loaded with Perilla essential oil and its application in preservation of peaches

Front Nutr. 2023 Feb 6:10:1087605. doi: 10.3389/fnut.2023.1087605. eCollection 2023.

Abstract

In this study, Perilla frutescens essential oil (PEO) loaded microcapsules (PEOM) were successfully prepared and their thermal stability, temperature-responsive releasing effect, antioxidant activity, antibacterial activity, and preservation of peach were systematically investigated. PEOM showed excellent encapsulation efficiency (91.5%) with a core-shell ratio of 1.4:1 and exhibited high thermal stability, indicating that PEOM could effectively maintain PEO release rate. In vitro assays indicated that the optimal kinetic model for PEO release fitted well with first order with a diffusion mechanism. A high level of antioxidant and antibacterial activity of PEOM was maintained. In addition, owing to its sustained release, PEOM could prolong the shelf life of peaches significantly. Therefore, PEOM has potential application and development prospects in the field of food preservation.

Keywords: Perilla essential oil; microcapsule; peach; preservation; thermal property.

Grants and funding

This work was financially supported by the joint training base for production-education integration of graduate students (Kunming University of Science and Technology-Kunming China Huarun Shenghuo Pharmaceutical Co., Ltd., No. 109920220113) and Non-subject project of R&D Center of China Tobacco Yunnan Industry Co., Ltd. (Study on the application of aroma components of five yun-produced characteristic tobacco for heating cigarettes, No. KY-800322066.04).