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respiration and ethylene

Loreto Atieno, Willis Owino, Elijah M Ateka, Jane Ambuko
Various modes of edible coating application vary in their coat dispersion and film formation, hence the need to determine the most effective mode of application for cassava. Edible surface coatings have been found to be effective in preserving the quality of various food products. However, there are variations in effectiveness among the different coating solutions, hence the need for optimization of the concentrations of the gums used. This study aimed at determining the most efficient coating application method on the cassava postharvest quality...
2019: International Journal of Food Science
Karin Albornoz, Marita I Cantwell, Lu Zhang, Diane M Beckles
Postharvest chilling injury (PCI) reduces fruit quality and shelf-life in tomato (Solanum lycopersicum L.). PCI has been traditionally studied in the pericarp, however its development is likely heterogeneous in different fruit tissues. To gain insight into PCI's spatio-temporal development, we used postharvest biomarkers e.g. respiration and ethylene rates, ion leakage etc., to confirm the occurrence of PCI, and compared these data with molecular (gene expression), biophysical (MRI data) and biochemical parameters (Malondialdehyde (MDA) and starch content) from the pericarp or columella...
February 26, 2019: Scientific Reports
Yuanyuan Ma, Lei Fu, Zahoor Hussain, Dandan Huang, Shuhua Zhu
Sweet cherries rapidly depreciate in market value owing to decay and the quick loss of fruit quality after harvest. Therefore, optimum postharvest treatment is crucial for maintaining the qualities of cherries during storage. Here, we tested a new method of postharvest treatment by immersing sweet cherries in nitric oxide-releasing chitosan nanoparticles (GSNO-CS NPs), storing them at 0 °C and evaluating fruit quality over time. The results indicated that GSNO-CS NPs more effectively preserved the quality of cherries during cold storage compared to other methods...
July 1, 2019: Food Chemistry
Jianlong Liu, Jie Yang, Haiqi Zhang, Liu Cong, Rui Zhai, Chengquan Yang, Zhigang Wang, Fengwang Ma, Lingfei Xu
Understanding ripening and senescence processes in postharvest stored fruit is key to the identification and implementation of effective treatment methods. Here, we explored the effects of exogenous applications of melatonin (MT) and nitric oxide (NO) on ripening and softening processes in three cultivars of European pear ( Pyrus communis L.). The results showed that MT and NO played important roles in the two processes: they decreased the rate of upregulation of PcCel and PcPG, inhibited expression of ethylene synthetase genes ( PcACS and PcACO), and reduced rates of respiration and ethylene production...
February 8, 2019: Journal of Agricultural and Food Chemistry
Simone Klein, Antje Fiebig, Daniel Neuwald, Dominik Dluhosch, Lena Müller, Georg Groth, Georg Noga, Mauricio Hunsche
BACKGROUND: Processes extending shelf-life of climacteric fruit play an important role in terms of a sustainable global food supply. In a previous study, a synthetic octapeptide (NOP-1) was shown to inhibit the interaction between ETR (ethylene receptor) and EIN2 (ethylene insensitive-2), and in consequence delay tomato ripening. We investigated for the first time the effect of NOP-1 to inhibit the ripening of apples (Golden Delicious) during postharvest. RESULTS: Using purified recombinant proteins from a bacterial expression system, we demonstrate here that EIN2 also interacts tightly (Kd = 136 +/- 29 nM) with the corresponding apple ethylene receptor MdETR1...
January 29, 2019: Journal of the Science of Food and Agriculture
Nasiru Alhassan, John B Golding, Ron B H Wills, Michael C Bowyer, Penta Pristijono
Calyx browning and internal quality loss are major physiological causes for the loss of quality in citrus fruit during storage. While the symptoms of calyx senescence are only superficial, it can affect the appearance and consumer acceptability of citrus fruit. In this study, continuous ethylene exposure at different storage temperatures was investigated to assess their effect on calyx senescence and internal qualities in 'Afourer' mandarin and Navel orange fruit during storage. 'Afourer' mandarin fruit were stored at ≤0...
January 9, 2019: Foods (Basel, Switzerland)
Argus Cezar da Rocha Neto, Randolph Beaudry, Marcelo Maraschin, Robson Marcelo Di Piero, Eva Almenar
A package was created that extends apple shelf-life by slowing Penicillium expansum growth. The package consisted of a peelable lid and a tray with a double bottom with inclusion complexes (ICs) of ß-cyclodextrin (ß-CD) containing the essential oils of palmarosa (ICp) or of star anise (ICsa). Oil amounts required for antimicrobial activity were obtained from in vitro assays. After 12 days at 23 °C, P. expansum-inoculated apples in both of the double-bottom antimicrobial packages (DBAP) had 1/3 less fungal growth, less than 50% weight loss and ethylene and CO2 production, and less than 25% firmness loss, TA and SSC increase, and pH decrease compared to controls...
May 1, 2019: Food Chemistry
Abdollatif Sheikhi, Seyed Hossein Mirdehghan, Louise Ferguson
BACKGROUND: The effects of passive-modified atmosphere packaging (passive-MAP) on the postharvest quality of de-hulled fresh pistachios (Pistacia vera L. cv. Kerman) stored at cold temperature (0 ± 0.5 °C) and 90 ± 1% R.H. was investigated with fruits under ambient air condition as the control treatment. The fruit quality parameters measured included kernel firmness, color values (L* , a* , b* , h°, and C* ), weight loss, fungal decay and marketability, ethylene production, respiration rate, and sensory characteristics at 0, 30, 60 and 105 days of storage...
January 4, 2019: Journal of the Science of Food and Agriculture
Fang Tian, Weiliang Chen, Cai'E Wu, Xiaohong Kou, Gongjian Fan, Tingting Li, Zhihao Wu
In this study, the chitosan, chitosan/nano-TiO2 and chitosan/nano-SiO2 coating films were prepared, their physico-chemical properties were determined. Then the preservation of ginkgo seeds coating with these films were investigated during storage. The incorporation of nano-TiO2 and nano-SiO2 particles of the best formula enhanced the mechanical properties of the composite films, which improved the water-vapor and gas permeability. Chitosan coating incorporation of nano-TiO2 and nano-SiO2 particles could significantly decrease the decay rate, shrinkage rate, respiration rate, ethylene production rate, electrolyte leakage rate, superoxide anion (O2 ·- ) production rate and the accumulation of malondialdehyde (MDA) content...
December 19, 2018: International Journal of Biological Macromolecules
Fang Tian, Weiliang Chen, Gongjian Fan, Tingting Li, Cai'E Wu, Xiaohong Kou, Zhihao Wu
BACKGROUND: The effects of Ginkgo biloba seed exopleura extract (GSEE) and chitosan (CH) coating on the preservation of ginkgo seeds were investigated. RESULTS: Results showed that chitosan could alleviate the decay rate, and that CH combined with GSEE treatment (CH-GSEE) further inhibited the development of seed decay due to the additional antifungal activity of GSEE. The nutrient contents, including water, starch, and soluble protein, were maintained by both CH-GSEE and CH treatment...
December 10, 2018: Journal of the Science of Food and Agriculture
Jordi Giné-Bordonaba, Gemma Echeverria, Elisabet Duaigües, Gloria Bobo, Christian Larrigaudière
Apple quality and the storage potential likely depend on a range of physiological and biochemical events occurring throughout fruit development and ripening. In this study, we investigated the major physiological (ethylene production and respiration) and biochemical changes (related to sugar and malic acid content as well as antioxidant metabolism) occurring during growth and on-tree ripening of two apple varieties ('Granny Smith' (GS) and 'Early Red One' (ERO)) with known differences in their postharvest behaviour, mainly firmness loss and susceptibility to superficial scald...
November 1, 2018: Plant Physiology and Biochemistry: PPB
Zhaowan Shi, Tamar Halaly-Basha, Chuanlin Zheng, Mira Weissberg, Ron Ophir, David W Galbraith, Xuequn Pang, Etti Or
Transient increases in ethylene biosynthesis, achieved by tight regulation of transcription of specific ACC oxidase and ACC synthase genes, play a role in activation of grapevine bud dormancy release. The molecular mechanisms regulating dormancy release in grapevine buds are as yet unclear. It has been hypothesized that its core involves perturbation of respiration which induces an interplay between ethylene and ABA metabolism that removes repression and allows regrowth. Roles for hypoxia and ABA metabolism in this process have been previously supported...
November 3, 2018: Plant Molecular Biology
Martina Puccinelli, Fernando Malorgio, Leon A Terry, Roberta Tosetti, Irene Rosellini, Beatrice Pezzarossa
BACKGROUND: Selenium (Se) enrichment of plants seems effective in enhancing the health-related properties of produce, and in delaying plant senescence and fruit ripening. The current study investigated the effects of Se on tomato fruit ripening. Tomato (Solanum lycopersicum L.) plants were grown in hydroponics with different Se-enriched nutrient solutions. Se, as sodium selenate, was added at rate of 0 mg L-1 (control), 1 mg L-1 , and 1.5 mg L-1 . RESULTS: Selenium was absorbed by roots and translocated to leaves and fruit...
October 27, 2018: Journal of the Science of Food and Agriculture
Qiang Guo, Yuki Yoshida, Ian T Major, Kun Wang, Koichi Sugimoto, George Kapali, Nathan E Havko, Christoph Benning, Gregg A Howe
Plant immune responses mediated by the hormone jasmonoyl-l-isoleucine (JA-Ile) are metabolically costly and often linked to reduced growth. Although it is known that JA-Ile activates defense responses by triggering the degradation of JASMONATE ZIM DOMAIN (JAZ) transcriptional repressor proteins, expansion of the JAZ gene family in vascular plants has hampered efforts to understand how this hormone impacts growth and other physiological tasks over the course of ontogeny. Here, we combined mutations within the 13-member Arabidopsis JAZ gene family to investigate the effects of chronic JAZ deficiency on growth, defense, and reproductive output...
November 6, 2018: Proceedings of the National Academy of Sciences of the United States of America
Yi Chen, Jérôme Grimplet, Karine David, Simone Diego Castellarin, Javier Terol, Darren C J Wong, Zhiwei Luo, Robert Schaffer, Jean-Marc Celton, Manuel Talon, Gregory Alan Gambetta, Christian Chervin
Fruits have been traditionally classified into two categories based on their capacity to produce and respond to ethylene during ripening. Fruits whose ripening is associated to a peak of ethylene production and a respiration burst are referred to as climacteric, while those that are not are referred to as non-climacteric. However, an increasing body of literature supports an important role for ethylene in the ripening of both climacteric and non-climacteric fruits. Genome and transcriptomic data have become available across a variety of fruits and we leverage these data to compare the structure and transcriptional regulation of the ethylene receptors and related proteins...
November 2018: Plant Science: An International Journal of Experimental Plant Biology
Xiaoyang Zhu, Qiumian Li, Jun Li, Jun Luo, Weixin Chen, Xueping Li
Aromatic compounds are important for fruit quality and can vary among fruit cultivars. Volatile compounds formed during the ripening of two banana cultivars, Brazilian and Fenjiao, were determined using headspace solid-phase micro-extraction (SPME) and gas chromatography coupled with mass spectrometry (GC-MS). These two cultivars exhibited different physiological characteristics during storage. Fenjiao fruit exhibited faster yellowing and softening, a higher respiration rate and greater ethylene production...
September 25, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Penta Pristijono, Michael C Bowyer, Christopher J Scarlett, Quan V Vuong, Costas E Stathopoulos, John B Golding
The green Tahitian limes ( Citrus latifolia ) were exposed to 7.2 kJ m-2 UV-C and 0.5 μL L-1 1-methylcyclopropene (1-MCP) treatments both separately and in combination. After treatment, fruit were stored in ethylene free (i.e. air containing < 0.005 μL L-1 ) or 0.1 μL L-1 ethylene at 20 °C and 100% RH. The results showed that UV-C treatment delayed skin degreening and reduced endogenous ethylene production compared to untreated control fruit, however these effects reduced over the storage time...
July 2018: Journal of Food Science and Technology
Tarık Yarılgaç, Hayrullah Kadim, Burhan Ozturk
BACKGROUND: A study was conducted to determine the effects of modified-atmosphere packaging (MAP) treatments on fruit quality attributes and bioactive compounds of cornelian cherry fruits (Cornus mas L.) harvested at two different maturity stages - maturity (M): M-1, skin red color <10%; M-2, skin red color >90% - throughout the shelf life. Fruits were stored at 0 ± 0.5 °C and 90 ± 5% relative humidity (RH) for 30 days, and then kept at 22 ± 0.5 °C and 80 ± 5% RH over 3 days for shelf life...
June 13, 2018: Journal of the Science of Food and Agriculture
Pushpendra Kumar, Shruti Sethi, R R Sharma, Manish Srivastav, Dinesh Singh, Eldho Varghese
Plum is a perishable fruit with a very short shelf life of 3-4 days. Several studies have suggested the possible use of edible coatings on maintaining quality and prolonging storage life of fresh horticultural produce. Hence, different edible coatings, namely, lac-based (2:3), Semperfresh™ (1:3) and Niprofresh® (1:5) were selected to observe their efficacy on quality retention of 'Santa Rosa' plums. The effects of these coatings on the physical, physiological and biochemical attributes were studied under cold storage conditions (2 ± 1 °C and 85-90% relative humidity)...
June 2018: Journal of Food Science and Technology
Andreas Schulte, Jana Viola Schilling, Jannis Nolten, Anna Korona, Hannes Krömke, Jan-Bernd Vennekötter, Britta Schillheim, Matthias Wessling, Uwe Conrath, Jochen Büchs
BACKGROUND: Ethylene is an important plant hormone that controls many physiological processes in plants. Conventional methods for detecting ethylene include gas chromatographs or optical mid-infrared sensors, which are expensive and, in the case of gas chromatographs, are hardly suitable for automated parallelized online measurement. Electrochemical ethylene sensors are cheap but often suffer from poor resolution, baseline drifting, and target gas oxidation. Thus, measuring ethylene at extremely low levels is challenging...
June 1, 2018: BMC Plant Biology
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