Abstract:
A comparative study was conducted to find out the physico-chemical characteristics
of five different soybean varieties collected from various sources. In this study, seed
weight, moisture%, ash%, oil%, protein%, carbohydrate, chemical constant
(saponification, acid, and iodine value), fatty acid composition and mineral
composition of five soybean genotypes and their cakes were estimated. Among the
five varieties the highest thousand seed weight was 159.00±1.0g found in BINA
Soybean-2. Moisture content varied from 9.29±0.12% (Shohag) to 10.49±0.28%
(BINA Soybean-2). Maximum ash content was observed in Shohag (5.18±0.12%).
Oil content varied from 12.67±1.15% (BARI Soybean-5) to 16.73±0.64% (BINA
Soybean-1). Maximum oil cake was found in BARI Soybean-5 (87.33±1.15%).
Protein percentage ranged from 37.99±0.36% (BARI Soybean-6) to 41.50±0.18%
(BINA Soybean-1). Carbohydrate content was ranged from 27.19±0.45% (BINA
Soybean-1) to 34.72±0.58% (BARI Soybean-6). Highest iodine value was observed in
BNIA Soybean-1 (95.69±0.10). Highest saponification value was found in BINA
Soybean-1 (191.79±0.21). Lowest acid value was found in BINA Soybean-1
(0.91±0.01). BINA Soybean-1 content highest amount of oleic acid (24.72±0.03%),
linoleic acid (35.63±0.03%) and linolenic acid (9.24±0.03%). In terms of mineral
composition, the variety Shohag showed highest amount of phosphorus
(0.82±0.82%), potassium (0.80±0.04%), manganese (32.03±0.06 ppm), cupper (29.00
ppm) and zinc (54.70 ppm). This study suggests that Shohag contained notable
mineral compositions but in the matter of qualitative aspect BINA Soybean-1
performed better over other varieties.
Description:
A Thesis
Submitted to the Faculty of Agriculture,
Sher-e-Bangla Agricultural University,
Dhaka, In partial fulfillment of the requirements for the degree of
MASTER OF SCIENCE
IN
BIOCHEMISTRY
