Introduction. Our investigation aimed to examine the influence of eco-friendly edible coatings composed of sodium alginate, olive oil and green tea extract (GTE) on improving the shelf life and nutritional quality of carambola (A. carambola L.). Materials and methods. The combinations and concentrations of composite coatings tested were (2% sodium alginate + 0.1% olive oil) (T1), (2% sodium alginate + 0.2% olive oil) (T2) and (2% sodium alginate + 0.1% olive oil + 0.25% GTE) (T3), while the untreated fruit served as control (T4) and were stored at (25 ± 5) °C and (65 ± 5)% RH. All the stored fruit were subjected to physico-chemical and biochemical analysis at regular intervals of 4 days up to 16 days of their storage period. Results and discussion. Weight loss and decay occurrence were least in the fruit treated with T1 and T2 as compared with those of T3 and uncoated fruit (T4). The contents of total soluble solids, total sugars and changes in pigments were found to be least in fruit treated with T1 followed by those treated with T2 and T3. The addition of GTE (T3) to treated fruit during the storage helped enhance the antioxidants such as total phenols and ascorbic acid. Conclusion. The composite edible coatings tested in our study enhanced the shelf life of coated carambola fruit, i.e., thirteen days for T1, sixteen days for T2, fourteen days for T3 and twelve days for control or untreated fruit (T4); the nutritional quality of carambola was enhanced with the treatment of edible coating containing GTE.

Abstract – Introduction. Mango fruits grown underhigh-density planting show a progressive decline in crop yield after14–15 years, due to overcrowding of canopies, which suggests regularcanopy management is necessary. Hence, the effects of pruningtreatment on fruit yield and quality of ‘Amrapali’ mango were studiedin India over two consecutive years, 2010 and 2011. Materialsand methods. Mango trees were subjected to pruning(removal of 50 cm of shoot from the apex) in the month of September2009 with unpruned trees serving as control. Fruits were harvested atthe commercial maturity stage and quality parameters were assessedboth in fresh fruits and following ripening at room temperature [(35 ±2) °C and (80 ± 5)% RH)]. Results and discussion. Fruityield of pruned trees was found to decrease during the first yearcompared with the fruit yield of unpruned trees; later on, itincreased during the second year. Pruning resulted in significantlyhigher fruit weight, fruit firmness, total carotenoids, antioxidantcapacity and total phenolic content. Early maturity of fruits wasobserved from unpruned trees with faster color change, higher totalsoluble solids and lower titratable acidity. The fruits harvested frompruned trees showed slower ripening, and lower respiration, ethyleneevolution rate and enzyme activity as compared with fruits fromunpruned trees. Both anthracnose and stem-end rot disease percentagewere reduced in ripe fruits from pruned trees.Conclusion. Pruning treatment appears to be analternative strategy to obtain better yield and quality in denselypopulated old mango orchards.

Introduction. The Brazilian Savannah presents a wide vegetable diversitythat produces fruit that have unique characteristics and should be better characterizedand exploited. The agricultural-economic exploration of the fruits from the Savannahcontributes to income generation and may play an important role in improving humannutrition. The aim of our research was to evaluate the physical characteristics (diameter,height and mass), chemical composition (moisture, ash, proteins, lipids, dietary fiber,titratable acidity, soluble solids and pH), occurrence and content of vitamin C (ascorbicacid and dehydroascorbic acid), carotenoids (α-carotene, β-carotene, β-cryptoxanthin andlycopene), vitamin E (α-, β-, γ- and δ-tocopherols and tocotrienols) and folates(tetrahydrofolate, 5-methyltetrahydrofolate and 5-formyltetrahydrofolate) in pequi fromthe Savannah of Minas Gerais, Brazil. Materials and methods. Analyses ofcarotenoids and vitamin C were carried out by HPLC-DAD, and vitamin E and folates by HPLCwith fluorescence detection. Results. The pulp of cooked pequi presented highcontents of dietary fiber (9.9 g·100 g–1), lipids (33 g·100 g–1), carotenoids (8.11 mg·100g–1), vitamin C (14.33 mg·100 g–1), vitamin A (514.38 RAE·100 g–1) and total energy(317.19 kcal·100 g–1). Contents of folates and vitamin E were 5.1 μg·100 g–1 and 110.52μg·100 g–1, respectively. Conclusion. The pulp of cooked pequi presents ahigh energy value, as well as elevated contents of dietary fiber and lipids. It is a goodsource of vitamin C and an excellent source of vitamin A. The nutritional value and thewide availability of pequi make it an important tool for the reduction of food andnutritional insecurity.

Introduction. Carotenoids havebeen described as possessing several important functional propertiesand health benefits. These properties make these compounds idealfor the always increasing functional food industry as well as forpromoting the consumption of the natural products in which theyare contained. Here, we report the first characterisation of thenon-saponified carotenoid composition in fresh peach fruits and commercialpeach juice and jam. Materials and methods. Fully matureyellow-fleshed peach fruits produced in Sicily were purchased ata local market; they were peeled and the pulp was analysed. Commercialpeach juice and commercial peach jam from three different knownmanufacturers were also purchased at the local market. Both thejuice and jam analysed were produced by local manufacturers fromthe same kind of fresh fruit studied in this work. After carotenoid extractionwith organic solvents, the samples were analysed by a direct HPLC-DAD-APCI-MSmethodology. Results and discussion. Three free carotenoids(zeaxanthin, β-cryptoxanthin and β-carotene) and three monoestersof β-cryptoxanthin were identified and detected in all the samplesanalysed. Interestingly, the carotenoid profile remained the same inall the samples, and it was not affected by the peach processingoccurring during the production of the peach juice and jam. Moreover,small differences were observed in the relative contents of the identifiedcomponents among the samples investigated.