National Dairy Research Institute

About: National Dairy Research Institute is a facility organization based out in Karnāl, Himachal Pradesh, India. It is known for research contribution in the topics: Population & Sperm. The organization has 3228 authors who have published 3524 publications receiving 51151 citations. The organization is also known as: Imperial Institute of Animal Husbandry and Dairying & Imperial Dairy Institute.

Optimization of ‘green’ extraction of carotenoids from mango pulp using split plot design and its characterization

Abstract: Mango, king of all fruits, is a good source of carotenoids. The present investigation was aimed at extraction of carotenoids from mango pulp using bio-refinery concept. Three green solvents, namely groundnut, sunflower and flaxseed oil were used. The carotenoids were extracted for different time intervals in different green solvents at different pulp to vegetable oil ratio using magnetic stirring (MS), ultrasonication (US), microwave (MW) and high shear dispersion (HSD) techniques. Out of 540 samples (3 × 180) analyzed, one combination was selected on the basis of highest total carotenoid content (TCC) using split plot design of statistical analysis. Maximum extraction was possible in flaxseed oil by using HSD technique. The selected combination was compared with corresponding vegetable oil (used as a control) for TCC, antioxidant activity (ABTS, μg Trolox eq./ml; DPPH, μg Trolox eq./ml and FRAP, μM Trolox eq./ml), tocopherol content and colour value (L, a, b) and showed a respective increase of 158.8-6, 123.72, 33.37, 11.95, 15.15% and 12.77, 5.57, 21.51 units. The increase in carotenoid content was further confirmed by Attenuated Total Reflectance-Fourier Transform Infra-Red spectroscopy (ATR-FTIR). The carotenoid-rich extract can be applied in food formulations for preparation of functional foods.

Effect of exogenous fibrolytic enzymes supplementation on milk production and nutrient utilization in Murrah buffaloes

Abstract: The present study was conducted to evaluate the effect of commercial exogenous fibrolytic enzyme (EFE) mixture added at 1.5 and 3.0 g (cellulase 4,000 µM glucose/g/h + xylanase 7,990 µM xylose/g/min; 50:50 w/w) per kilogram of dry matter (DM) of feed on nutrient digestibility, milk production, milk composition, and some blood constituents in lactating Murrah buffaloes. Eighteen buffaloes were allotted to three dietary treatments, on the basis of milk yield (8.48, 8.52, and 8.53 kg/day) and days in lactation (68.5, 80.33, and 82.00) for 90 days. The buffaloes were fed a total mixed ration (TMR) comprising of 45% chaffed wheat straw, 15% chopped green maize, and 40% concentrate on DM basis (control group), the same TMR plus EFE at 1.5 g/kg DM (T-1 group) and the same TMR plus EFE at 3.0 g/kg DM (T-2 group) supplemented through the concentrate mixture. There was no effect of fortifying EFE mixture on DM intake and crude protein intake (grams per day) whereas total digestible nutrients intake (kilogram per day) was higher by (P 0.05) difference in blood glucose and blood urea nitrogen concentration in different experimental groups. It is concluded that supplementation of cellulase and xylanase mixture at 1.5 g/kg of DM of TMR containing wheat straw (45%), green maize (15%), and concentrate (40%) on DM basis significantly increased (P < 0.05) the average daily milk yield and FCM yield in Murrah buffaloes due to improved dietary fiber digestion.