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Dr. Y. S. Parmar University of Horticulture & Forestry, Solan

Dr. Yashwant Singh Parmar University of Horticulture and Forestry, Solan, was established on 1st December, 1985 with the objective to promote education, research and extension education in the fields of Horticulture, Forestry and allied disciplines. Late Dr. Yashwant Singh Parmar, the first Chief Minister and the architect of Himachal Pradesh perceived the importance of Horticulture and Forestry to develop and improve the State economy which led to the establishment of this University. Its history lies in erstwhile Himachal Agricultural College, Solan, established in 1962 and affiliated to the Panjab University. It became one of the campuses of Agriculture Complex of Himachal Pradesh University on its formation in 1970. Consequent upon the establishment of Himachal Pradesh Krishi Vishvavidyalaya in 1978, this campus became its Horticulture Complex and finally in 1985, assumed the status of a State University, being the only University in the country engaged exclusively in teaching, research and extension in Horticulture and Forestry. The University is located at Nauni in Solan District of Himachal Pradesh, 13 km from Solan on Solan-Rajgarh Road, at an elevation of 1300 metres above mean sea level. Solan town is situated on national highway (NH-22) and is well connected by train and bus services. The University has four constituent colleges, out of which, two are located at the main campus Nauni, one for horticulture and the other for forestry, having 9 and 7 departments, respectively. The third College i.e., College of Horticulture & Forestry is located at Neri in Hamirpur District on Nadaun-Hamirpur state highway, about 6 Km from Hamirpur town and is well connected with bus service. The college offers three Undergraduate Degree Programmes i.e. BSc (Hons.) Horticulture, BSc (Hons.) Forestry and B. Tech. Biotechnology and MSc degree programme in a few subjects. The fourth college i.e. College of Horticulture and Forestry, Thunag (Mandi) is located at Thunag District Mandi. This college offer BSc (Hons.) Horticulture and BSc (Hons.) Forestry degree programme. In addition, there are five Regional Research Stations, 12 Satellite Stations and five Krishi Vigyan Kendras (KVKs) situated in different zones of the State.

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20151
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Subject: Food Technology × Author: Bira, Zuberi Mohamed × End date: 2015 × Type: Thesis ×
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    ThesisItemOpen Access
    Storage quality of fresh mushrooms (Agaricus bisporus Lange.) as affected by various pre- and post-harvest treatments
    (YSPU, 2015) Bira, Zuberi Mohamed; Thakur, K.S.
    Studies on ‘Storage quality of fresh mushrooms (Agaricus bisporus Lange.) as affected by various preand post-harvest treatments’ were carried out in the Department of Food Science and Technology, Dr. Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Solan during 2012-13 and 2013-14. The whole programme of work was divided into three separate experiments. In Experiment I(a) and Experiment I(b) various concentrations of different plant extracts and CaCl2 were applied to standardize the best post-casing treatments for production of quality mushrooms, which were then combined with various packaging materials to standardize the complete protocol of post-casing and packaging treatments under Experiment I(c). In Experiment II plant extracts and CaCl2 were tried as post-harvest treatments, whereas in Experiment III various coating materials were tested for their effect on storage quality of fresh mushrooms. All the post-casing treatments improved yield and physico-chemical quality characteristics of mushroom at harvest as well as during storage. Carbendazim @ 0.1 per cent in combination with 0.3 per cent CaCl2 applied at post-casing stage resulted in a yield of 2.26 kg/10kg bag of substrate and it was followed by 3.0 per cent garlic extract + 0.3 per cent CaCl2 treatment which produced 2.23 kg/10 kg bag as compared to 1.56 kg/10 kg bag under the control treatment. Garlic extract and CaCl2 treatments appeared to be more effective in retaining storage quality, as evaluated on the basis of reduction in physiological loss in weight (PLW), spoilage, total plate count (TPC), enzymatic browning and polyphenol oxidase activity. It was also more effective in retention of colour, moisture, pH, total soluble solids (TSS), proteins and total phenol contents during storage, as a result of which they were rated to be of higher overall acceptability, especially when mushrooms were packed in plastic moulded cups (punnets) and stored under refrigerated conditions. Plant extracts applied as post-harvest treatments were also effective in reducing deterioration in mushroom quality during storage with 3.0 per cent garlic extract + 0.3 per cent CaCl2 outperforming other treatments. The most effective postharvest coating treatment in retaining storage quality of mushrooms was the combination of 5.0 per cent calcium caseinate + 2.5 per cent glycerol + 0.25 per cent CMC + 0.125 per cent CaCl2, whereas chitosan acetate @ 1.5 per cent, Starlight @ 45 per cent and honey @ 10 per cent concentrations were effective to a lesser extent.