Enhancement of Postharvest Life of Persimmon Fruit Through Botanical Extracts

Preparation and handling procedures for fresh-cut mango slices were developed using `Tommy Atkins', `Haden', and `Palmer' mangoes. Fruit with yellow flesh color (no green color remaining) were optimum maturity for fresh-cut in terms of maintenance of acceptable appearance, texture, and taste; riper fruit developed flesh breakdown and more browning. Postharvest life of fresh-cut mango at 5 °C was 8 to 10 d with no evidence of chilling injury and was limited by flesh browning and loss of firmness. Respiration rates ranged from 32 to 40 mg CO2/kg per hr and ethylene production was typically ≤0.1 μl·kg–1·hr–1. The SSC changed little during storage, while pH varied from 3.5 to 4.8 and TA typically declined by 30% to 40%. Peeling to a depth of at least 2 mm and trimming flesh near the stem scar was necessary to minimize browning. Imported fruit that had been heat-treated for insect quarantine showed more severe browning than Florida fruit that had not been heat-treated. Preparation in aseptic conditions and dipping fruit in a 100 ppm NaOCl solution at pH 7 before and after peeling protected against decay during storage but dipping in chlorine after slicing without removal of excess liquid resulted in flesh translucency and breakdown. Dipping in 1% CaCl2 solution had no effect on flesh firmness (Instron) or browning. Storage in an unvented plastic clamshell container, which developed an atmosphere of 2.25% CO2 plus 19% O2, did not improve shelf life, but a MA of 10% CO2 plus 10% O2 was subjectively judged to slow browning and softening and resulted in no off flavor compared to air storage.

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Botanical extracts against the potato tuber moth, Phthorimaea operculella (Zeller 1873) (Lepidoptera: Gelechiidae), during storage conditions

Egyptian Journal of Biological Pest Control ◽

10.1186/s41938-020-00294-1 ◽

2020 ◽

Vol 30 (1) ◽

Author(s):

Aziza Mohamed Fouad Sharaby ◽

Mohamed Ahmed Gesraha ◽

Sahar Ahmed Baker Fallatah

Keyword(s):

Potato Tuber ◽

Storage Conditions ◽

Phthorimaea Operculella ◽

Potato Tuber Moth ◽

Botanical Extracts

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Lycopene β-cyclase plays a critical role in carotenoid biosynthesis during persimmon fruit development and postharvest ripening

Scientia Horticulturae ◽

10.1016/j.scienta.2021.110265 ◽

2021 ◽

Vol 287 ◽

pp. 110265

Author(s):

Yingwei Qi ◽

Hanxiao Wu ◽

Jia Liu ◽

Lijuan Chen ◽

Zitao Jiang ◽

...

Keyword(s):

Fruit Development ◽

Critical Role ◽

Carotenoid Biosynthesis ◽

Persimmon Fruit ◽

Postharvest Ripening

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Packaging Solutions to Extend the Shelf Life of Green Asparagus (Asparagus officinalis L.) ‘Vegalim’

Foods ◽

10.3390/foods10020478 ◽

2021 ◽

Vol 10 (2) ◽

pp. 478

Author(s):

Stefania Toscano ◽

Valeria Rizzo ◽

Fabio Licciardello ◽

Daniela Romano ◽

Giuseppe Muratore

Keyword(s):

Shelf Life ◽

Color Difference ◽

Asparagus Officinalis ◽

Total Phenolic ◽

Postharvest Life ◽

Sensory Color ◽

Highly Correlated ◽

Enzymatic Changes ◽

Green Asparagus

The aim of the study was to assess, through a comparative shelf-life test, the suitability of two packaging materials, namely macro-perforated polypropylene (PP MA) and micro-perforated coextruded polypropylene (PP C), for the quality preservation of green asparagus (Asparagus officinalis L. ‘Vegalim’). Quality of spears was evaluated during 30 days at refrigerated storage by monitoring chemical, physical, and enzymatic parameters as well as sensory descriptors. PP C kept headspace composition close to suggested values for fresh green asparagus. Total color difference increased during the storage and it was highly correlated with chlorophyll-a and carotenoids, however, sensory color perception did not change significantly until 22 days of storage. PP C maintained ascorbic acid concentrations close to the initial levels, limited total phenolic compound loss to 24% (45% in PP MA), determined an increase of 72% in fiber content and small changes in lignin value; enzymatic changes were significantly inhibited. Significant sensorial differences were detected after 22 days of storage, with PP C performing better than PP MA. PP C film was confirmed as the best choice, limiting weight loss and maintaining a fresh-like appearance during 30 days of storage, thus allowing an extension in postharvest life.

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Molecular Responses during Plant Grafting and Its Regulation by Auxins, Cytokinins, and Gibberellins

Biomolecules ◽

10.3390/biom9090397 ◽

2019 ◽

Vol 9 (9) ◽

pp. 397 ◽

Cited By ~ 4

Author(s):

Anket Sharma ◽

Bingsong Zheng

Keyword(s):

Plant Hormones ◽

Growth And Development ◽

Molecular Mechanisms ◽

Main Process ◽

Graft Union ◽

Physiological Processes ◽

Current Review ◽

Postharvest Life ◽

Successful Production

Plant grafting is an important horticulture technique used to produce a new plant after joining rootstock and scion. This is one of the most used techniques by horticulturists to enhance the quality and production of various crops. Grafting helps in improving the health of plants, their yield, and the quality of plant products, along with the enhancement of their postharvest life. The main process responsible for successful production of grafted plants is the connection of vascular tissues. This step determines the success rate of grafts and hence needs to be studied in detail. There are many factors that regulate the connection of scion and stock, and plant hormones are of special interest for researchers in the recent times. These phytohormones act as signaling molecules and have the capability of translocation across the graft union. Plant hormones, mainly auxins, cytokinins, and gibberellins, play a major role in the regulation of various key physiological processes occurring at the grafting site. In the current review, we discuss the molecular mechanisms of graft development and the phytohormone-mediated regulation of the growth and development of graft union.

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