Influence of Electron Beam Irradiation on the Moisture and Properties of Freshly Harvested and Sun-Dried Rice
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...
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| Format: | Article |
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MDPI AG
2020-08-01
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| Series: | Foods |
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| Online Access: | https://www.mdpi.com/2304-8158/9/9/1139 |
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| author | Lihong Pan Jiali Xing Xiaohu Luo Yanan Li Dongling Sun Yuheng Zhai Kai Yang Zhengxing Chen |
| author_facet | Lihong Pan Jiali Xing Xiaohu Luo Yanan Li Dongling Sun Yuheng Zhai Kai Yang Zhengxing Chen |
| author_sort | Lihong Pan |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-10T17:12:24Z |
| format | Article |
| id | doaj.art-beff8b6ca293481ab530e88c8d2abfcb |
| institution | Directory Open Access Journal |
| issn | 2304-8158 |
| language | English |
| last_indexed | 2024-03-10T17:12:24Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Foods |
| spelling | doaj.art-beff8b6ca293481ab530e88c8d2abfcb2023-11-20T10:38:15ZengMDPI AGFoods2304-81582020-08-0199113910.3390/foods9091139Influence of Electron Beam Irradiation on the Moisture and Properties of Freshly Harvested and Sun-Dried RiceLihong Pan0Jiali Xing1Xiaohu Luo2Yanan Li3Dongling Sun4Yuheng Zhai5Kai Yang6Zhengxing Chen7Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan, Wuxi 214122, ChinaNingbo Institute for Food Control, Ningbo 315048, ChinaKey Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan, Wuxi 214122, ChinaKey Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan, Wuxi 214122, ChinaWuxi EL PONT Radiation Technology Co., Ltd., Wuxi 214151, ChinaKey Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan, Wuxi 214122, ChinaKey Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan, Wuxi 214122, ChinaKey Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan, Wuxi 214122, ChinaMoisture 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.https://www.mdpi.com/2304-8158/9/9/1139Electron Beam Irradiationricemoisturephysicochemical properties |
| spellingShingle | Lihong Pan Jiali Xing Xiaohu Luo Yanan Li Dongling Sun Yuheng Zhai Kai Yang Zhengxing Chen Influence of Electron Beam Irradiation on the Moisture and Properties of Freshly Harvested and Sun-Dried Rice Foods Electron Beam Irradiation rice moisture physicochemical properties |
| title | Influence of Electron Beam Irradiation on the Moisture and Properties of Freshly Harvested and Sun-Dried Rice |
| title_full | Influence of Electron Beam Irradiation on the Moisture and Properties of Freshly Harvested and Sun-Dried Rice |
| title_fullStr | Influence of Electron Beam Irradiation on the Moisture and Properties of Freshly Harvested and Sun-Dried Rice |
| title_full_unstemmed | Influence of Electron Beam Irradiation on the Moisture and Properties of Freshly Harvested and Sun-Dried Rice |
| title_short | Influence of Electron Beam Irradiation on the Moisture and Properties of Freshly Harvested and Sun-Dried Rice |
| title_sort | influence of electron beam irradiation on the moisture and properties of freshly harvested and sun dried rice |
| topic | Electron Beam Irradiation rice moisture physicochemical properties |
| url | https://www.mdpi.com/2304-8158/9/9/1139 |
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