Evaluation of brown and yellow seeded quality germplasm of oilseed Brassica for their potential nutrients
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Date
2018-08
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G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand)
Abstract
Oilseed Brassica is one of the most important crop among the seven edible oilseed crops. India’s top Rapeseed & Mustard producing states is Rajasthan followed by Madhya Pradesh and Haryana. In northern India, mustard oil is popular for cooking purposes, in the preparation of pickles and also used in cosmetics due to its excellent health benefits. The defatted meal of oilseeds Brassica is an excellent source of many bioactive compounds, proteins, minerals, vitamins and antioxidants. It also comprises some anti-nutritional compounds such as glucosinolates and phytic acid. In the present investigation, 15 genotypes of oilseed Brassica were evaluated for their potential nutrients. The total phenolic content observed to be maximum in LES-56 (5.92 ± 0.132 mg/g), total flavonoid content found highest in RLC-6 (0.536±0.009 mg/g) and the ortho-dihydroxy phenol recorded highest in Kranti (0.412±0.007 mg/g). The highest antioxidant content was recorded in PM-29 (23.27 ± 0.202 mg/g) followed by NRCHB-101 (21.19 ± 0.583 mg/g) and LES-56 (20.54 ± 0.329 mg/g). The glucosinolates in Brassica genotypes in desired range (i.e., <30 μmol/g) was observed in PDZ9 (19.69±1.229μmol/g), PDZ-10 (20.35±1.847μmol/g) and RLC-6 (27.73±0.011μmol/g). The minimum phytic acid content was recorded in PDZ-9 (1.7± 0.173 mg/100g). The crude protein ranges from 23.35±0.710 % (in RLC-6) to 30.06±1.121 % (in LES-56). The methionine content was found to be maximum in LES-54 (2.398± 0.063 g/100g protein) and the highest tryptophan content was found in NPJ-203 (1.219± 0.029 g/100g protein). The highest content of nitrogen, phosphorus, and potassium was recorded in LES-56 as compared to Kranti. The maximum content of Copper was observed in PM-30 (9.2 mg kg-1), Zinc was found to be highest in RGN73 (149.5 mg kg-1) and Iron was observed to be highest in RH-749 (187.7 mg kg-1). Thus, the oilseed Brassica can be utilized in the preparation of functional food as a feasible food ingredient due to the presence of potential nutrients.
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