http://localhost:8080/handle/123456789/2812 2026-04-08T15:01:53Z http://localhost:8080/handle/123456789/348 EVALUATION OF CHEMICAL CHARACTERISTICS AND SHELF-LIFE OF FRESH CUT PAPAYA (Carlea papaya) AND PINEAPPLE (Ananus sail via) AT DIFFERENT DAYS OF INTERVAL RAHMAN, A.T.M SADEQUR The study was conducted to determine the shelf life of fresh cut fruits (papaya. pineapple) and to evaluate the acceptability of the fresh cut fruits when preserved at 0_40 C temperatures in refrigerator. Fresh-cut fruits consumption is increasing due to the rising public demand for convenience and awareness of fresh-cut fruit's health benefits. The entire tissue of fruits and vegetables is rich in bioaetive compounds, such as phenolic compounds, earotenoids, and vitamins. The proximate chemical analysis of fresh cut fruits showed that FSS of pineapple and papaya was higher in 40% sugar solution which was found after 7 days of storage at (0- 4)0 C. Acid content was slightly varied among all the samples and the value for papaya was 0.18 in CMC solution and 40% sugar solution and 1.45% for pineapple in 40% sugar solution after 5 days of storage. Vitamin-C was decreased in all samples and the reasonable value for papaya was 51.25 mg/I OOg in 40% sugar solution and 52 m811 DOg in CMC and for pineapple 29.20 mg It OOg in 40% sugar solution 29.1 mg/I OOg in CMC solution after day 5. Moisture was decreased in all samples and the reasonable value Ibr papaya was 73.9% in 40% sugar solution and 74.1% in CMC and for pineapple 74.8% in 40% sugar solution. 75.00% in CMC solution after day 5. Ash content was increased in all samples and the reasonable value (or papaya was 0.95% in control treatment solution. 0.92% in 0.1% KMS solution and for pineapple 0.300N, in 40% control treatment solution, 0.27% in 0.01 KMS solution aflcr day 5. Microbial load was increased in all samples and in case of papaya the lowest value was 2100 in 0.1% IQvIS solution, where the value in 40% sugar solution and CMC coaled are 3000. 3000 respectively. For pineapple the lowest value is 2200 in 0.1% KMS solution and the value in 40% sugar solution and CMC coated samples are 3400. 3100 at 5 days of preservation. The results found in this study suggest that the 40% sugar solution and CMC coating is all elièctive treatment to prolong the shelf-life of fresh cut papaya and pineapple. A Thesis Submitted to the Department of Biochemistry Slier-c-Bang/a Agricultural University, Dhaka In partialfidjillment of the requirements for the degree MASTER OF SCIENCE (MS) IN BIOChEMISTRY SEMESTER: JULY-DECEMBER, 2015 2015-07-01T00:00:00Z http://localhost:8080/handle/123456789/347 COMPARATIVE STUDY ON THE CHEMICAL COMPOSITION OF DIFFERENT VARIETIES AND ADVANCED LINE OF RAPESEED AND MUSTARD (Brassica spp.) RAHMAN, MD. SAHEDI An experiment was conducted to study the chemical composition of two released varieties and four advanced line of rapeseed and mustard (Brassica spp.). Among these released varieties and advanced line, the highest grain weight was obtained from (SAU Sarisha-1 x SAU Sarisha-2) x F1 x SAU Sarisha-2 (4.500 g) and lowest grain weight obtained from BARI Sarisha-15 (4.46 g). In case of proximate analysis, the highest protein content and the highest carbohydrate were recorded from (SAU Sarisha-1 x SAU Sarisha-2)-F7 (29.37%) and BARI Sarisha-9 x BARI Sarisha-6 (19.95%) respectively. The oil content of different released varieties and advanced line of mustard and rapeseed varied from 35.81% to 40.58%. (SAU Sarisha-1 x SAU Sarisha-2) x F1 x SAU Sarisha-2 (537.56 kcal/g) contained the highest amount of Gross Energy. The highest amount of calcium content BARI Sarisha-15 (1.09%) and the highest amount of magnesium content (0.61%) were collected from BARI Sarisha-15. The highest amount of saponification value (169.6) and the highest amount of iodine value (108.8) were recorded from BARI Sarisha-14; however, the highest amount of acid value was recorded from (SAU Sarisha1 x SAU Sarisha-2)-F7 (1.78). Erucic acid was in the range of 37.37% to 47.75%, oleic acid was the highest in (SAU Sarisha-1 x SAU Sarisha-2)-F7 contained 17.15%, while BARI Sarisha-9 x BARI Sarisha-6 containd the highest amount of the unsaturated linoleic acid (19.37%) and containd the highest amount of linolenic acids (SAU Sarisha1 x SAU Sarisha-2) x F1 x SAU Sarisha-2 (7.83%). Moreover palmitic acid, stearic acid , arachidic acid and behenic acid were also present in small amount. It may be concluded that, released and advanced line of (SAU Sarisha-1 x SAU Sarisha-2) x F1 x SAU Sarisha-2, BARI Sarisha-15, (SAU Sarisha-1 x SAU Sarisha-2)-F7, BARI Sarisha-14 with appropriate qualitative and quantitative properties in their seed oil contents, can be grown in large scale as they contained the highest amount of different nutrient contents. A Thesis Submitted to the Department of Biochemistry Sher-e-Bangla Agricultural University, Dhaka In partial fulfillment of the requirements for the degree of MASTER OF SCIENCE IN BIOCHEMISTRY SEMESTER: JULY-DECEMBER, 2015 2015-07-01T00:00:00Z http://localhost:8080/handle/123456789/346 EFFECT OF DIFFERENT SAWDUST ON YIELD AND PROXIMATE ANALYSIS OF NAMDEC OYSTER MUSHROOMS YEASMIN, AMINA The study was conducted at the Biochemistry laboratory and Mushroom Culture House (MCH) of the Department of Biochemistry, Sher-e-I3angla Agricultural University, Dhaka during the period from Januan' to June 2015 to study the effect ol different sawdust on yield and proximate analysis of NAMDEC oyster mushrooms. The highest mycelium running rate (0.76cmidays) was observed in '1'7. the lowest time required to complete myeelium running(16.60days) was observed in T7 tlie lowest time(5.43days) in T7 required from stimulation to primordial initiation, the lowest time (3.20days) in T, from primordial initiation to harvest .The highest average number of primordial /packet (90.21) in i'7 and the highest average number of fruiting body/packet(77.17) in T7.Avrage weight of individual fruiting body (3.2 Ig) was higher in T5.The highest length of stipe (2.96cm) in T7,the highest diameter of stipe (0.82cm) in 19, the highest diameter of pileus (8.60cm)in T7. and the highest thickness of pileus(0.72cm) in 'I',. NAMDUC Oyster-3 mushroom grown on Chambol sawdust gave the best result with the highest biological yield (187.70gm), economic yield (181.0gm), dry yield (18.84gm), biological efficiency (93.85%) and benefit cost ratio (4.25).The highest moisture content (89.86%) was observed in 1 1,thc highest dry matter content(10.55%) was observed in T2, the highest lipid content(3.87%) was observed in Ti. the highest crude fiber content(24.83%) was observed in Ts. the highest carbohydrate content( 1.18%) was observed in Ti the highest ash content(8.23%) was observed in T8 The highest phosphorus content(0.906%) was observed in T7 the highest potassium content(1.312%) was observed in T7. the highest calcium content (22.11mg/I OOg)was observed in T9.the highest magnesium contcnt(18.40mgJI00g) was observed in T1.thc highest iron content(42.27mgi100g)was observed in T7 T3 and T9 and the highest zinc content(l5.12mg/100g) was observed in 1 7.NA.MIDEC Oyster-3 mushroom with Chambol sawdust performed bcst in terms of percent protein (26.71%) and >1(4.27%) content. A Thesis Submitted to the Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka, in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE IN BIOCHEMISTRY SEMESTER:, 2015 2015-07-01T00:00:00Z http://localhost:8080/handle/123456789/345 EFFECT OF DIFFERENT SAWDUST SUBSTRATE ON THE GROWTH, YIELD AND PROXIMATE COMPOSITION OF OYSTER MUSHROOM (Pleurotus ostreatus) BISWAS, PRINCE Five different sawdust viz, mango tree (iioiigiIèra indica). rain tree (1llbiia saman). teak tree (Tectona grandLc), mahogony tree (Su'ietenicz inahagoni) and mixture of all four sawdust supplemented with 30 % wheat bran and I % CaCO3 as basal substrate were selected for studies their performance on growth. yield and proximate composition of oyster inushrooni (Pk'urotus ostreatus). The highest mycelium running rate in spawn packet (0.72 cm/day) was found in mixture of sawdust, the maximum time from stimulation to primordial initiation (8.04 days) and time from primordial initiation to harvest (4.24 days) were recorded in mango tree sawdust. The highest number of primordial/packet (217.5). fruiting body/packet (115.5) and effective fruiting body/packet (29.02) were observed in mango tree sawdust. The highest weight of individual fruiting body (5.60 g), dry yield (35.15 g). biological yield (368.18 g) and economic yield (360.68 g) were also tbund in mango tree sawdust. The mahogany tree sawdust gave the highest moisture (89.13 %) content of oyster mushroom. This study also investigate the effect of sawdust supplements on nutritional status where the maximum amount ot'dry mailer (10.1 8°/h), amount of lipid (4.46 %) were found in mixture of sawdust. The highest amount of Fe (42.52 %) was observed in rain tree sawdust supplemented with 30% wheat bran. lie highest crude fiber (19.53 %) was recorded in mango tree sawdust supplemented with 30% wheat bran. The highest Protein (26.04 %) and Ca (30.73 %) were observed in mixture of sawdust supplemented with 30% wheat bran. Therefore. it can be concluded that mango tree sawdust supplemented with 30 % wheat bran can be further used as a better substrate for oyster mushroom PIeurotus ostreatus) production reducing cost and increasing the yield and nutritional quality. A Ihesis Submitted to the Faculty ol Agriculture Sher-e-Bangla Agricultural lJniversity. Dhaha- 1207, in partial liii Itliment of the requirements for the degree of MASTER OF SCIENCE (MS) IN BIOCHEMISTRY SEMESTER: January-June, 2014 2015-07-01T00:00:00Z