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Assam Agricultural University, Jorhat

Assam Agricultural University is the first institution of its kind in the whole of North-Eastern Region of India. The main goal of this institution is to produce globally competitive human resources in farm sectorand to carry out research in both conventional and frontier areas for production optimization as well as to disseminate the generated technologies as public good for benefitting the food growers/produces and traders involved in the sector while emphasizing on sustainability, equity and overall food security at household level. Genesis of AAU - The embryo of the agricultural research in the state of Assam was formed as early as 1897 with the establishment of the Upper Shillong Experimental Farm (now in Meghalaya) just after about a decade of creation of the agricultural department in 1882. However, the seeds of agricultural research in today’s Assam were sown in the dawn of the twentieth century with the establishment of two Rice Experimental Stations, one at Karimganj in Barak valley in 1913 and the other at Titabor in Brahmaputra valley in 1923. Subsequent to these research stations, a number of research stations were established to conduct research on important crops, more specifically, jute, pulses, oilseeds etc. The Assam Agricultural University was established on April 1, 1969 under The Assam Agricultural University Act, 1968’ with the mandate of imparting farm education, conduct research in agriculture and allied sciences and to effectively disseminate technologies so generated. Before establishment of the University, there were altogether 17 research schemes/projects in the state under the Department of Agriculture. By July 1973, all the research projects and 10 experimental farms were transferred by the Government of Assam to the AAU which already inherited the College of Agriculture and its farm at Barbheta, Jorhat and College of Veterinary Sciences at Khanapara, Guwahati. Subsequently, College of Community Science at Jorhat (1969), College of Fisheries at Raha (1988), Biswanath College of Agriculture at Biswanath Chariali (1988) and Lakhimpur College of Veterinary Science at Joyhing, North Lakhimpur (1988) were established. Presently, the University has three more colleges under its jurisdiction, viz., Sarat Chandra Singha College of Agriculture, Chapar, College of Horticulture, Nalbari & College of Sericulture, Titabar. Similarly, few more regional research stations at Shillongani, Diphu, Gossaigaon, Lakhimpur; and commodity research stations at Kahikuchi, Buralikson, Tinsukia, Kharua, Burnihat and Mandira were added to generate location and crop specific agricultural production packages.

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Subject: Biochemistry × Author: Hazarika, Ilakshi × End date: 2019 × Start date: 2018 ×
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    ThesisItemOpen Access
    BIOCHEMICAL CHARACTERIZATION OF SOME COLOCASIA (Colocasia esculenta L.) GERMPLASM
    (AAU, Jorhat, 2018-07) Hazarika, Ilakshi; Sarmah, Runima
    Taro (Colocasiaesculenta L.), a member of Araceae family, is widely cultivated for its edible corms to be used as a subsistence food by millions of people in developing countries. Wide variability exists in taro genotypes grown in the North Eastern region. Taro has many nutritional, economic and health attributes, it has also some anti-nutritional components that are harmful to health. Because of the presence of these inherent factors of anti-nutritional components, demand of taro is less where consumers satisfaction is concerned. The present investigation was intended to study the nutritional nutritional as well as antinutritional contents and antioxidant activities of Colocasiaesculenta L. germplasm collected from Horticulture Farm under AICRP Scheme (Horticulture), Assam Agricultural University, Jorhat-13. The powdered sample of ten (10) different germplasm of this species were analyzed for moisture, starch, sugar, crude protein, total fat, ash, minerals, total dietary fibre, amylose, phenol contents, and antioxidant activities, phytate content and oxalate content. The observed data showed significant variation among the ten germplasm in respect of the nutritional and anti-nutritional parameters. The moisture content varied from 43.23 to 57.90 g/100g on fresh weight basis. On dry weight basis, the starch, reducing sugar, total soluble sugar, crude protein, crude fat, crude fibre and ash contents ranged from 49.5 to 77.4 g/100g; 2.6 to 4.1 g/100g; 4.3 to 5.75 g/100g; 7.5 to 11.8 g/100g; 0.80 to 1.17 g/100g; 1.49 to 2.77 g/100g; 2.4 to 3.4 g/100g, respectively. Among the minerals, the content of phosphorous, iron, calcium and potassium ranged from 22.94 to 33.63 mg/100g; 7.59 to 11.32 mg/100g; 39.63 to 63.15 mg/100g; and 89.91 to 117.9 mg/100g, respectively. Amylose content was found in the range of 9.2 to 17.6 g/100g.The values of total phenol and antioxidant activity (% inhibition of DPPH) ranged from 41.67 to 57.26 mg/100g and 67.69 to 78.71 % respectively. Among the anti-nutrients the content of oxalate and the phytic acid ranged from 0.107 to 0.170 g/100g and 67.54 to 75.53 mg/100g.The possible reason for variation in nutrient, anti-nutrient and antioxidant contents among the ten germplasm of Assam might be due to the variation in their genetic make up. Among the ten germplasm of colocasia, considering carbohydrate, protein and mineral (phosphorous, iron and potassium) contents, the germplasmʻBorKochuʼ was found to be the prominent one. However, from the view point of oxalate and phytic acid content, ‘BorKochu’ and ‘Naga Black’ came up to be the safest germplasm among the ten .