{"title":"Time-dependent changes in quality of Apiaceae spices under synergistic effects of ultraviolet radiation and hermetic storage","authors":"Liela M. Ali, Mohamed M. El-kholy, Reham M. Kamel","doi":"10.1016/j.jarmap.2024.100566","DOIUrl":null,"url":null,"abstract":"<div><p>This study investigates the combined effects of ultraviolet radiation (UV-C) and hermetic storage on the quality of Apiaceae spices intended for consumption after long-term storage. Anise, fennel, caraway, and cumin seeds were exposed to UV radiation for 0 (control) and 25 min of UV-C. Subsequently, the seeds were packed into jute and multilayers of polyethylene hermetic bags (120, 150, and 160 <span><math><mrow><mi>μ</mi><mi>m</mi></mrow></math></span> with an antifungal coating) and stored in a naturally aerated storage room for 12 months. During the storage period, the ambient conditions ranged from 17.2 °C to 30.5 °C and from 59.3 % to 62.8 % RH. While the jute bags maintained the ambient conditions, the hermetic bags had significantly (P< 0.05) decreased temperature and relative humidity, depending on the packaging type and UV-C treatment. The seed moisture content increased significantly (P< 0.05) during storage. The increase percentage reached (20.5–24 %) in jute bags containing untreated seeds, whereas the 150 <span><math><mrow><mi>μ</mi><mi>m</mi></mrow></math></span> and antifungal bags containing UV-treated seeds had the lowest increase percentage (0.3–4.0 %). By the end of the storage period, the hermetic bags containing fennel-treated seeds had the highest significant (CO<sub>2</sub>/O<sub>2</sub>) ratio of 163.8. UV-C efficiently suppressed microorganisms and insect infestation, particularly in seeds stored in the 150 <span><math><mrow><mi>μ</mi><mi>m</mi></mrow></math></span> and antifungal bags. After 6 months of storage, the jute bags had 465–578 insects/kg. The results show that hermetic conditions maintained the phenolic content and antioxidants of Apiaceae spices, particularly with UV-treated seed. Based on the findings, pretreating Apiaceae seeds with UV-C sterilization is recommended prior to storage in hermetic bags. This approach is expected to accelerate the start of optimal hermetic conditions, thereby enhancing seed quality.</p></div>","PeriodicalId":15136,"journal":{"name":"Journal of Applied Research on Medicinal and Aromatic Plants","volume":"42 ","pages":"Article 100566"},"PeriodicalIF":3.8000,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Applied Research on Medicinal and Aromatic Plants","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214786124000391","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
This study investigates the combined effects of ultraviolet radiation (UV-C) and hermetic storage on the quality of Apiaceae spices intended for consumption after long-term storage. Anise, fennel, caraway, and cumin seeds were exposed to UV radiation for 0 (control) and 25 min of UV-C. Subsequently, the seeds were packed into jute and multilayers of polyethylene hermetic bags (120, 150, and 160 with an antifungal coating) and stored in a naturally aerated storage room for 12 months. During the storage period, the ambient conditions ranged from 17.2 °C to 30.5 °C and from 59.3 % to 62.8 % RH. While the jute bags maintained the ambient conditions, the hermetic bags had significantly (P< 0.05) decreased temperature and relative humidity, depending on the packaging type and UV-C treatment. The seed moisture content increased significantly (P< 0.05) during storage. The increase percentage reached (20.5–24 %) in jute bags containing untreated seeds, whereas the 150 and antifungal bags containing UV-treated seeds had the lowest increase percentage (0.3–4.0 %). By the end of the storage period, the hermetic bags containing fennel-treated seeds had the highest significant (CO2/O2) ratio of 163.8. UV-C efficiently suppressed microorganisms and insect infestation, particularly in seeds stored in the 150 and antifungal bags. After 6 months of storage, the jute bags had 465–578 insects/kg. The results show that hermetic conditions maintained the phenolic content and antioxidants of Apiaceae spices, particularly with UV-treated seed. Based on the findings, pretreating Apiaceae seeds with UV-C sterilization is recommended prior to storage in hermetic bags. This approach is expected to accelerate the start of optimal hermetic conditions, thereby enhancing seed quality.
期刊介绍:
JARMAP is a peer reviewed and multidisciplinary communication platform, covering all aspects of the raw material supply chain of medicinal and aromatic plants. JARMAP aims to improve production of tailor made commodities by addressing the various requirements of manufacturers of herbal medicines, herbal teas, seasoning herbs, food and feed supplements and cosmetics. JARMAP covers research on genetic resources, breeding, wild-collection, domestication, propagation, cultivation, phytopathology and plant protection, mechanization, conservation, processing, quality assurance, analytics and economics. JARMAP publishes reviews, original research articles and short communications related to research.