STUDY OF SOME PHYSICO-CHEMICAL PROPERTIES OF SWEET CORN
Journal Title: International Journal of Agricultural Science and Research (IJASR) - Year 2017, Vol 7, Issue 1
Abstract
Sweet corn, Zea mays var Rugosa, a member of the Graminaeae is an annual grass. Sweet corn is picked when immature (milk stage) and prepared and eaten as a vegetable, rather than a grain, which are harvested when the kernels are dry and mature (dent stage). Since the process of maturation involves converting sugar to starch, sweet corn stores poorly and must be eaten fresh, canned or frozen, before the kernels become tough and starchy. Hence, Physical properties plays prominent role in designing post harvest/processing equipments while chemical compositions in value additions and processing of various products. In this study some physical properties and chemical compositions of sweet corn were determined. The physical properties of sweet corn determined the average length, diameter and unit weight were 237.5 ± 17.0 mm, 55.62 ± 3.42 mm and 361.26 ± 34.24 g respectively. The bulk density of sweet corn is 1150.55 ± 0.58 kg/m3, the ear to kernel ratio from 2.3: 1 and the colour L* a* b* of sweet corn was measured to be respectively 74.74 ± 2.8, 0.78 ± 0.78, 49.18 ± 1.54. The chemical properties such as mean moisture content of sweet corn on wet basis were found to be 76.14 ± 0.78 %. The mean value of crude protein content of sweet corn was found to be 9.7 ± 0.472%. The mean value of crude fibre content of sweet corn was estimated to be 1.8 ± 0.1% and the mean value of ash content of was 3.4 ± 0.1%. The total sugar content of sweet corn was found to be 37.5 ± 0.5 in which the reducing sugar content was 2.8 ± 0.05% and non-reducing sugar content of sweet corn was 34.7 ± 0.3%. The starch content of sweet corn was determined to be 14.62 ± 0.4
Authors and Affiliations
GEETA . H. P, PALANI MUTHU, SRINIVAS . G
Keywords
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