Effects of Packaging on Proximate and Mineral Compositions of Ndop Rice (Tox Variety) During Storage

Abstract

This study was conducted to investigate the pre and postharvest activities of rice stakeholders and to evaluate the influence of packaging on the proximate and mineral compositions of Ndop rice (TOX rice variety). A survey involving rice stakeholders was conducted in Ndop using a semi-structured questionnaire to gather information on the production, preparation, storage and handling practices of rice. It was found after the survey that, Ndop rice samples from UNVDA were stored in different packaging materials viz; polypropylene, nylon, rubber containers and paper bags at room temperature for two months. It was documented that 55% male and 45% female with the majority (63%) within the age category of 31-50 years are involved in Ndop rice postharvest management practices. Results also revealed that a majority (71%) of the respondents use polypropylene woven bags as packaging materials while 38% of respondents store rice for six months. Mice and weevils were reported as the key biotic factors affecting Ndop rice during storage. Furthermore, the results also showed that the moisture content (MC), fat, carbohydrate, ash and crude fiber contents decreased while protein increased across all the treatments during storage. Rice packed in paper bags had the lowest MC (10.17%), while rice in rubber containers had the highest MC (14.67%), at the end of the two months storage period. Rice packed in nylon bag had the highest protein content (14.11±0.71%). The mineral contents of Ndop rice decrease across all treatments after the second month of storage. The highest mineral retention (214.22±5.64 mg/100g for potassium) was observed in rice packed in paper bags. To maintain quality, paper bags or plastic buckets could be recommended as the best packaging materials for Ndop rice at the end of the second-month storage duration. This study contributes to food sufficiency and security by curbing postharvest food loss in Cameroon.