Postharvest senescence and associated stresses limit the shelf life and nutritional value of vegetables. Improved understanding of these processes creates options for better management. After harvest, controlled exposure to abiotic stresses and/or exogenous phytohormones can enhance nutraceutical, organoleptic and commercial longevity traits. With leaf senescence, abscisic acid (ABA) contents p...

Joanna M. Kułdo, Johanna Westra, Sigridur A. Ásgeirsdóttir, Robbert J. Kok, Koen Oosterhuis, Marianne G. Rots, Jan P. Schouten, Pieter C. Limburg, and Grietje Molema Endothelial Cell and Vascular Drug Targeting Group, Medical Biology Section, Department of Pathology and Laboratory Medicine, Department of Rheumatology, Department of Pharmacokinetics and Drug Delivery, Department of Therapeutic G...

The antioxidant properties of hot-water extracts from a dried chili pepper were maintained through the postharvest ripening process at 10 degrees C for 18 months. In order to isolate the antioxidant from the ripe pepper, we fractionated hot-water extracts by size-exclusion gel chromatography. A certain fraction showed antioxidative activity via the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-s...

In this paper, the main problem and countermeasure of fruit production quality and safety were studied in Yanshan Mountain. The subjective factor was fruit farmer quality and safety consciousness faint, and the objective factors were: severe orchard environmental pollution, faint fruit postharvest handling, lag in process technology, fruit quality determination and market inspection system is n...

Calcium is thought to be the most important mineral element determining fruit quality. It seems to be especially important in apples where it has been shown to reduce metabolic disorders. Calcium in adequate amounts helps to maintain apple fruit firmness and decreases the incidence of physiological disorders such as water core, bitter pit and internal breakdown. Postharvest decay may also be re...

In March 2014, a kohlrabi stem rot sample was collected from the cold storage room of Daegwallyong Horticultural Cooperative, Korea. White and fuzzy mycelial growth was observed on the stem, symptomatic of stem rot disease. The pathogen was isolated from the infected stem and cultured on potato dextrose agar for further fungal morphological observation and to confirm its pathogenicity, accordin...

Practices in the citrus industry evolve rapidly to minimize postharvest decay losses, mostly a result of green mold or blue mold, caused by Penicillium digitatum or P. italicum, respectively. Current problems include the continued development of fungicide resistance among these pathogens, and compliance with emerging secondary residue standards and other privatized regulation of production and ...