Nutritional evaluation of barley varieties grown under organic and inorganic farming conditions
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Date
2005
Authors
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Publisher
CCSHAU
Abstract
Four varieties of barley viz. BH-75, BH-331, BH-338 and BH-393 grown
under organic as well as inorganic farming conditions were evaluated for their nutrient
composition, the level of antinutitional factors and in vitro protein and starch digestibilities.
The results of the investigation revealed that there was no significant difference in the
moisture and fat contents of the barley varieties grown under organic, as well as inorganic
farming conditions. Varieties grown under inorganic farming conditions had significantly
(P0.05) higher protein and ash contents. Variety BH-75 had highest crude fibre content.
Non-significant differences were observed in ADF, NDF, Cellulose and hemicellulose content
of varieties grown under organic as well as inorganic farming conditions. Non-significant
differences were observed for the total soluble sugars of barley varieties grown under organic
and inorganic farming conditions. On an average, organically grown varieties had
significantly (P0.05) higher starch content than inorganically grown barley varieties.
Inorganically grown varieties had significantly (P0.05) higher polyphenol content and
amylase inhibitor activity as compared to organically grown barley varieties, whereas
non-significant difference was observed for phytic acid content. Significantly (P0.05) higher
protein digestibility (in vitro) was reported in organically grown barley varieties than
inorganically grown varieties. The variety BH-75 had maximum starch digestibility (in vitro).
On an average, inorganically grown barley varieties had significantly higher amount of total
calcium and phosphorus as compared to those grown under organic farming conditions. The
per cent extractability of phosphorus was statistically similar under organic and inorganic
conditions. There were non-significant differences in total iron content of barley varieties
grown under organic and inorganic farming conditions. The highest per cent extractability of
copper and manganese was found in variety BH-338.