EFFECT OF DIFFERENT POST HARVEST TREATMENTS AND PACKAGING MATERIALS TO EXTEND THE SHELF LIFE OF TUBEROSE (Polianthes tuberosa L.) FLORETS
| dc.contributor.advisor | JHALEGAR, MD JAMEEL | |
| dc.contributor.author | G. R., REETHU | |
| dc.contributor.other | S. L., JAGADEESH | |
| dc.contributor.other | G., BHUVANESHWARI | |
| dc.contributor.other | A. G., BABU | |
| dc.contributor.other | P., PAVAN KUMAR | |
| dc.date.accessioned | 2020-10-07T07:04:10Z | |
| dc.date.available | 2020-10-07T07:04:10Z | |
| dc.date.issued | 2018-07 | |
| dc.description.abstract | An investigation to study the effect of different pre-cooling methods (precooling at 4°C, hydrocooling at 4°C and by use of gel ice packs),followed by treatments with sucrose(10% and 4%) and boric acid(4% and 2%) further florets packed in 5 different packages such as (Nylon bags, polythene and polypropylene bag with ventilation (0.2% and 0%),butter paper lined CFB boxes and aluminium foil lined thermocol box was carried out in Dept. of Post Harvest Technology, College of Horticulture, Bagalkot, during 2017-18,further entire protocol used and conducted transport studies (rail). Among the three pre-cooling method used treatment T4 (pre-cooled at 40C + 4% boric acid) better shelf life upto 4 days with least mean physiological loss in weight (22.02%), least respiration rate (94.43 CO2 kg-1 h-1), highest L* value (88.13), with minimum wilting (30.37%), polyphenol enzyme activity 0.05U/g FW with better retention of fragrance and freshness with scores (3 and 5) on modified scale. In second experiment Pre-cooled florets treated with different chemicals and packed in CFB boxes among these treatment T7(pre-cooled at 40C + 4% boric acid + GA3 100 ppm) showed minimum PLW(25.00%) less respiration rate (92.00 CO2 kg-1 h-1) highest L* value (87.23), with minimum wilting (25.16%) less enzyme activity 0.05U/g FW and extended the shelf life of tuberose florets upto 7 days of storage with better retention of fragrance and freshness with scores (4 and 5)compare to control. Among different packaging materials used during rail transport treated florets packed in aluminium foil lined thermocol ice box box showed maximum shelf life with lowest PLW was recorded in C3T7 (2.05%),less respiration rate (35.5 mlCO2 kg/hr), highest L* value (92.2), freshness score (3)fragrance score (2.95),better retention of moisture (91.75%). From the above results of this study, it is concluded that pre-cooling at 4°C found best among pre-cooling methods and chemical treatments combination of 4% boric acid as well as GA3 at 100 ppm , followed by packing in thermocol box lined with aluminium foil, padded with gel ice pack was found to be the best protocol for transport of tuberose loose florets to distant market especially through rail. | en_US |
| dc.identifier.issn | UHS16PGM780 | |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810152732 | |
| dc.keywords | POST HARVEST TREATMENTS AND PACKAGING MATERIALS TO EXTEND THE SHELF LIFE OF TUBEROSE FLORETS, T449 | en_US |
| dc.language.iso | English | en_US |
| dc.pages | 116 | en_US |
| dc.publisher | University of Horticultural Sciences, Bagalkot | en_US |
| dc.research.problem | Thesis | en_US |
| dc.sub | Post Harvest Technology | en_US |
| dc.theme | EFFECT OF DIFFERENT POST HARVEST TREATMENTS AND PACKAGING MATERIALS TO EXTEND THE SHELF LIFE OF TUBEROSE (Polianthes tuberosa L.) FLORETS | en_US |
| dc.these.type | M.Sc | en_US |
| dc.title | EFFECT OF DIFFERENT POST HARVEST TREATMENTS AND PACKAGING MATERIALS TO EXTEND THE SHELF LIFE OF TUBEROSE (Polianthes tuberosa L.) FLORETS | en_US |
| dc.type | Thesis | en_US |