S. L., JAGADEESHMESTA, RAGAVENDRA K.JAVADAGI, RAVEENDRAG., BHUVANESHWARID. L., RUDRESHK. S., THIPPANNAK. V., KAVANA2020-09-072020-09-072019-08UHS17PGM917https://krishikosh.egranth.ac.in/handle/1/5810150948An experiment entitled “Studies on zeolite-LDPE and zeolite-biodegradable composite bags to extend the shelf life of fresh coriander and fenugreek leaves” was conducted in the Department of Post-Harvest Technology, College of Horticulture, University of Horticultural Sciences, Bagalkot during the year 2018-19. In this experiment, six packaging treatments (T1-Zeolite-LDPE composite bag, T2-Silver-zeolite-LDPE composite bag, T3-Chlorine-zeolite-LDPE composite bag, T4-Zeolite-Biodegradable composite polybag, T5-Normal polyethylene bag and T6-Paper wrapping) were compared with control (T7) to know their efficacy in extending shelf life of coriander and fenugreek leaves under ambient (30±1 °C, 41±1 % RH and 33±1 °C, 36±1 % RH, respectively) and refrigerated (7 °C, 85-90 % RH) conditions. Under ambient conditions, coriander leaves packed in T3 showed significantly minimum PLW (15.00 %), respiration rate (153.68 ml CO2/kg/hr), instrumental colour values L* (50.67), a* (-7.13), b* (29.68), spoilage index (0.12) and maximum moisture content (71.24 %), texture value (9.12 N), chlorophyll content (1.61 mg/g), shelf-life (3.33 days) and higher sensory scores. While under refrigerated condition, coriander leaves packed in T3 showed significantly minimum physiological loss in weight (PLW) (20.32 %), instrumental colour values L* (49.68), a* (-7.43), b* (35.96), spoilage index (0.59) and maximum moisture content (68.42 %), texture value (14.28 N), chlorophyll content (1.33 mg/g), shelf-life (11.33 days) and higher sensory scores. Under ambient conditions, fenugreek leaves packed in T3 showed significantly minimum physiological loss in weight (PLW) (9.57 %), respiration rate (193.26 ml CO2/kg/hr), instrumental colour values L* (49.60), a* (-8.69), b* (36.44), texture (28.65 N), spoilage index (0.13) and maximum moisture content (71.65 %), chlorophyll (1.73 mg/g), shelf-life (3.00 days) and higher sensory scores. While under refrigerated condition fenugreek leaves packed in T3 showed significantly minimum physiological loss in weight (PLW) (20.65 %), instrumental colour values L* (52.31), a* (-7.15), b* (41.48), texture (32.66 N), spoilage index (0.58) and maximum moisture content (69.54 %), chlorophyll (1.49 mg/g), shelf-life (9.33 days) and higher sensory scores. Respiration rate, under refrigerated condition, did not show significant differences among the treatments both in coriander and fenugreek during storage period of 16 and 12 days respectively. Zeolite-LDPE and zeolite-biodegradable composite bags were not found to be economically viable to extend shelf-life of coriander and fenugreek leaves under ambient conditions prevailed during the course of study. But, under refrigerated condition, the treatment T3 yielded an additional shelf-life of 9 days and 7 days over control in coriander and fenugreek respectively.en-USThesis