The research was conducted to assess the variability and relationship regarding physicochemical properties, antioxidant activity and bioactive compounds in edible and nonedible portions (peel, flesh and seed) of dragon fruit cultivars native to Bangladesh. The most popular and largely cultivated Bangladesh Agricultural Research Institute (BARI) released BARI Dragon Fruit-1 and Bangladesh Agricultural University (BAU) released BAU Dragon Fruit-1 cultivars were chosen in the study. The experiment was conducted in two factors completely randomized design where two cultivars and, three edible and nonedible portions were considered as treatments. The findings of the investigation revealed that there was a large discrepancy in the average weight in the selected cultivars where BAU Dragon Fruit-1 was found to be superior (347 g) to BARI Dragon Fruit-1 (284 g). These cultivars contained 31.86% to 35.44% peel, 59.74% to 65.08% flesh and 3.06% to 4.82% seed in their edible and non-edible portions. The BAU Dragon Fruit-1 provided a good recovery rate with the highest flesh to peel ratio (2.04:1). The highest amount of total soluble solids (10.20°Brix) was obtained in the flesh portion of BARI Dragon Fruit1. The utmost quantities of ascorbic acid were found in the seeds of each cultivar, ranging from 24.40 to 31.41 mg/100 g. The BARI Dragon Fruit-1 cultivar’s seed contained the highest tannin (444.64 mg TAE/100 g), whereas the flesh of the same cultivar had the lowest (335.04 mg TAE/100 g). In comparison, the phenolic content of BAU Dragon Fruit -1 cultivar's seed and flesh ranged from 162.86 to 163.13 mg GAE/100 g. The highest antioxidant activity (91.35%) was found in the seed portion of BARI Dragon Fruit-1. According to the findings, the edible and non-edible portions of Bangladesh's native dragon fruit cultivars have particular features, which will help in diverse food and pharmaceuticals product formulation and development.

The effect of 1-methylcyclopropene (1-MCP) treatments and storage conditions in the regulation of the physicochemical and bioactive properties of mango fruits (Mangifera indica L. cv. BARI-4) were investigated during storage. Different concentrations of 1-MCP treated samples (T₀ = Control, T₁ = 0.5 μL/L, T₂ = 1.0 μL/L, T₃ = 1.5 μL/L, and T₄ = 2.0 μL/L) were stored in developed storage structure (10±1 °C and 90 % RH), cold storage (3 ± 1 °C and 80 ± 2 % RH), and ambient storage (29 ± 3 °C and 65 ± 2 % RH). The change in fruit quality including weight loss, firmness, surface color, storage life, chemical, and bioactive properties were studied periodically at 10, 20, 30 and 40 days of storage. The results demonstrated that 1-MCP treatment effectively maintained the quality of fruits by retarding the loss of weight, firmness, total soluble solids (TSS), and titratable acidity, which were served as a quality parameter during storage. The 1-MCP treatment dramatically delayed the change in color, quality measures, and bioactive properties compared to the control group. The storage condition greatly influenced the postharvest quality value and storage life. In combination with the developed storage structure and 1-MCP treatment preserved the acceptability of fruits to a great extent for around 40 days. The T₂ = 1.0 μL/L 1-MCP treatment preserved the fruit quality for the highest days of storage 14, 34, and 46 days in ambient storage, cold storage, and develop storage structure respectively. The developed storage structure (10 ± 1 °C and 90 % RH) with 1-MCP (1.0 μL/L) treatment suggested the optimum storage ability for preserving the postharvest storage life of mango fruits. By implementing these findings mango growers and suppliers can reduce post-harvest losses, expand market reach, and provide consumers with high-quality mangoes that retain their quality for an extended period.

The increasing environmental issues associated with plastic waste have sparked a heightened interest in the creation of biodegradable alternatives derived from renewable resources. One notable option is biodegradable film made from banana peels, which presents an environmentally friendly and sustainable solution. This review examines the viability of utilizing banana peels as a raw material for the production of biodegradable films. It investigates the chemical makeup of banana peels, emphasizing the presence of starch, cellulose, and pectin, which are essential for film formation. The review further addresses various processing techniques, including starch extraction, plasticization, and cross-linking, that improve the mechanical properties and biodegradability of the films. Moreover, it analyzes the environmental implications, potential applications in food packaging, and the challenges related to scalability and cost-effectiveness. The findings indicate that biodegradable films derived from banana peels represent a promising substitute for petroleum-based plastics; however, additional research is necessary to enhance their mechanical strength and commercial feasibility. The review concludes by advocating for ongoing investigation into natural waste resources for the development of sustainable materials.

The study was conducted at Jashore Sadar Upazila, Bangladesh during 2019-20 and 2020-21 to evaluate the effects of organic and inorganic nutrient sources on yield, quality and shelf life of broccoli through Randomized Complete Block Design with three replications and ten treatments which were: T1 = Soil test based 100% NPK, T2 = Vermicompost 4 t ha-1 + soil test based 50% NPK, T3 = Vermicompost 2 t ha-1 + 100% NPK, T4 =Tricho-compost 2 t ha-1 + 100% NPK, T5=FYM 6 t ha-1 + 100% NPK, T6 = Tricho-compost 4 t ha-1 + 50% NPK, T7 =FYM 12 t ha-1 + 50% NPK, T8= Vermicompost 1 t ha-1 + 125% NPK, T9= Tricho-compost 1 t ha-1 + 125% NPK, T10= FYM 3 t ha-1+125% NPK. Completely Randomized Design was designed to determine the shelf life of broccoli with three replications considering three factors; (i) Organic and inorganic nutrient sources; (ii) storage materials at room temperature (iii) storage materials at cold storage. Findings revealed that treatment T3 produced significantly maximum marketable curd yield 30.57 and 30.23 t ha-1 and the highest Benefit Cost Ratio (3.70 and 3.66) in the respective years. The treatment T2 effectively increased post-harvest quality attributes and also recorded the highest shelf life 8.36 and 8.55 days at room temperature (14-240 C with RH 60-65%), 26.33 and 27.25 days at cold storage (4° C with RH 90-95%) condition using High -Density Polyethylene (HDP; 15 micron) vacuum pack during the years of 2019-20 and 2020-21 respectively.