Influence of Electron Beam Irradiation on the Moisture and Properties of Freshly Harvested and Sun-Dried Rice
| Autor: | Zhengxing Chen, Xiaohu Luo, Lihong Pan, Jiali Xing, Dongling Sun, Kai Yang, Yanan Li, Yuheng Zhai |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Health (social science)
030309 nutrition & dietetics Starch Plant Science physicochemical properties Electron Beam Irradiation lcsh:Chemical technology Health Professions (miscellaneous) Microbiology Article 03 medical and health sciences chemistry.chemical_compound 0404 agricultural biotechnology moisture medicine Bound water lcsh:TP1-1185 Irradiation Food science Solubility Water content 0303 health sciences Moisture Depolymerization rice food and beverages 04 agricultural and veterinary sciences 040401 food science chemistry Swelling medicine.symptom Food Science |
| Zdroj: | Foods, Vol 9, Iss 1139, p 1139 (2020) Foods Volume 9 Issue 9 |
| ISSN: | 2304-8158 |
| Popis: | Moisture content is an important factor that affects rice storage. Rice with high moisture (HM) content has superior taste but is difficult to store. In this study, low-dose electron beam irradiation (EBI) was used to study water distribution in newly harvested HM (15.03%) rice and dried rice (11.97%) via low-field nuclear magnetic resonance (LF-NMR). The gelatinization, texture and rheological properties of rice and the thermal and digestion properties of rice starch were determined. Results showed that low-dose EBI could change water distribution in rice mainly by affecting free water under low-moisture (LM) conditions and free water and bound water under HM conditions. HM rice showed smooth changes in gelatinization and rheological properties and softened textural properties. The swelling power and solubility index indicated that irradiation promoted the depolymerization of starch chains. Overall, low-dose EBI had little effect on the properties of rice. HM rice showed superior quality and taste, whereas LM rice exhibited superior nutritional quality. This work attempted to optimize the outcome of the EBI treatment of rice for storage purposes by analyzing its effects. It demonstrated that low-dose EBI was more effective and environmentally friendly than other techniques. |
| Databáze: | OpenAIRE |
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