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Peroxidase actvity, its isozymes and deterioration of pearl millet [Pennisetum glaucum (L.) R. BR.] flour during storage
Get PDFDevelopment of off odour and flavour is an old and unresolved problem associated with pearl millet flour during storage and is the major hindrance for their consumer acceptability. In this study role of peroxidase, lipids and phenolics in deterioration of quality of pearl millet in control and stored flour of high (HHB 94) and low (ICMA 94222 x 78/71) rancid genotype was determined. Fat content, fat acidity, free fatty acids, total phenols, C-glycosylflavones content and peroxidase activity of HHB 94 were higher than that of ICMA 94222 x 78/71. Storage of flour for 8 days of these two genotypes showed significant increase in fat acidity and free fatty acids. Storage had no effect on C-glycosylflavones content whereas peroxidase activity reduced significantly with storage time. Isozyme profile showed that pearl millet grains had 3 isozymes of peroxidase and banding pattern was similar in both HHB 94 and ICMA 94222 x 78/71. While banding intensity represented that ICMA 94222 x 78/711 had lesser peroxidase activity as compared to HHB 94. The result suggested that peroxidase activity, fat acidity and free fatty acid value were usually correlated
Breeding strategies and scope of improvement in arid zone fruit crop-plants under abiotic stressed agro-climate: an analysis
Get PDFDry-land horticulture has immense potential in providing nutrition, social security and eco-restoration for the inhabitants of desert or rainfed and tribal land-areas of hot arid and semi-arid regions of the country. Realizing the importance and visionary support, Indian Council of Agricultural Research (ICAR) had prioritized research with few fruits in 1976 and then AICRP on arid zone fruits was started from 1978 with crop based centers in hot–spot region and this strengthen resulted to giving rise of Central Institute for Arid Horticulture in 1993 as national concern for conservation and use of arid crop-plant diversity and their promotion for horticultural exploitation. During 1985, commercial capacity of ber, pomegranate, aonla, bael, tamarind and custard apple was renowned. Indian sub-continent is one of recognized centre of origin or secondary areas of regional diversity for number of fruit crop-plant which are of native to arid and tribal areas, and not much attended for their potentiality i.e. ber, bordi, jharber, khejri, ker, lasora, gundi, pilu, phalsa, daasra, karonda, aonla, bael, wood apple, custard apple, tamarind, jamun, tendu, chironji, mahua, khirni, Palmyra palm, Indian dates, mulberry, fig and sehjan etc. There is ample scope for these drought tolerant and low input requiring crop-plant and for this there is rich reserve of considerable genetic variability is exists in species from Thar desert and tribal areas of the north-western India, which can yield fruits for fresh consumption, products of horticultural and nutraceutical values. Thus, their systematic exploitation and commercialization can not only provide food security but also ensure economic stability in rural masses in vast arid and semi-arid and/or tribal dominating sub-humid areas
Khejri tree mortality associated with infestation of Acanthophorus serraticornis (Olivier) and Ganoderma lucidum (Curtis) p. Karst. in Rajasthan
Get PDFTwo major biotic factors Acanthophorus serraticornis (root borer) and Ganoderma lucidum (root rot) responsible for khejri mortality was assessed in five districts in Rajasthan. Data obtained clearly revealed that all the dried/ dead Khejri trees under study were invariably infested with either root borer or root rot diseases
