農学部研究紹介英語版2018-2019

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Laboratory for Postharvest Science and Functional Properties of Fruits and Vegetables Yasunori HAMAUZU Associate Professor Keywords: horticulture, bioactive compounds, postharvest utilization Fruits and vegetables contain a wide range of phytochemicals and essential micronutrients that are thought to (at least partly) promote good health. Postharvest factors such as storage and processing conditions can change these functional compounds and the properties. Our purposes are to evaluate fruits and vegetables with their quality & health related compounds, and to find appropriate methods to enhance their quality including health-beneficial compounds. Study on changes in extractable and non-extractable polyphenols is currently in progress. Finding out processing conditions enable to optimize functional components and the properties of medicinal fruits and vegetables. [Current materials: Chinese quince and quince fruits, table beet] A B C D A B C Vegetables harvested from a symbiotic garden (Left). Chinese quince fruit jelly rich in phenolic antioxidants and pectin (Right). Quality assessment and determination of lycopene content of vine-ripened tomatoes stored under different conditions. Evaluation the utility of fruits & vegetables and their components. [Current materials: quince seeds, dried persimmon, fiber fraction containing non-extractable polyphenols] Quality assessment of products harvested from a symbiotic garden (small-scale vegetable garden using natural-farming method) Food Science and Biotechnology Division Laboratory of Chemistry for Functional Biomolecules Ayumi TSUTSUI, Ph.D. Assistant professor Keywords ; Bioactivity Chemical Biology, Organic synthesis, Our group collaborate with prof. Fujita group. To increase bioactivities, we design and synthesize analogs of bioactive natural products which was found by his group. Our research field are anti-cancer, inhibition of Aβ fibllization, mechanism of oxidative stress to give cells, and so on. Our research methods are organic synthesis, instrumental analysis (NMR, MS and HPLC) and cell based assay (Cytotoxicity. Western blot and Fluorescence analysis etc.). In our laboratory, students practice presentation for their works and also have NMR or journal study meeting. 1. Effects to cells by AGEs which produced by polyamines and carbohydrates. A C The reaction mixture was purified and analyzed. Reaction (Left), Analysis of data (Right) Food Science and Biotechnology Division 2. Anti-breast cancer activity of anacardic acids analogs. Photo Photo 10