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https://www.readbyqxmd.com/read/28643606/origin-of-low-molecular-mass-aldehydes-as-disinfection-by-products-in-beverages
#1
María Serrano, Mercedes Gallego, Manuel Silva
A novel, simple and automatic method based on static headspace-gas chromatography-mass spectrometry has been developed to determine 10 low-molecular mass aldehydes that can be found in beverages, coming from the treated water used in their production. These aldehydes are the most frequently found in treated water as water disinfection by-products, so they can be used as indicators of the addition of treated water to beverages. The study covered a large number of fruit juices and soft drinks. The presence of the whole array of analytes is related to the contact with treated water during beverage production, mainly by the addition of treated water as ingredient...
June 23, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28643121/a-study-on-the-expression-of-genes-involved-in-carotenoids-and-anthocyanins-during-ripening-in-fruit-peel-of-green-yellow-and-red-colored-mango-cultivars
#2
G R Karanjalker, K V Ravishankar, K S Shivashankara, M R Dinesh, T K Roy, D V Sudhakar Rao
Mango (Mangiferaindica L.) fruits are generally classified based on peel color into green, yellow, and red types. Mango peel turns from green to yellow or red or retain green colors during ripening. The carotenoids and anthocyanins are the important pigments responsible for the colors of fruits. In the present study, peels of different colored cultivars at three ripening stages were characterized for pigments, colors, and gene expression analysis. The yellow colored cultivar "Arka Anmol" showed higher carotenoid content, wherein β-carotene followed by violaxanthin were the major carotenoid compounds that increased during ripening...
June 22, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28630627/changes-in-polyphenols-contents-and-antioxidant-capacities-of-organically-and-conventionally-cultivated-tomato-solanum-lycopersicum-l-fruits-during-ripening
#3
Dea Anton, Ingrid Bender, Tanel Kaart, Mati Roasto, Marina Heinonen, Anne Luik, Tõnu Püssa
Polyphenols of fruits and vegetables form an important part of human dietary compounds. Relatively little is known about accumulation of phenolics during fruits ripening process. The goal of this work was to study the changes in antioxidant activity and in content of 30 polyphenols during ripening of tomato fruits. Five organically and conventionally grown tomato cultivars were investigated at three different ripening stages. Phenolic compounds were extracted with methanol and extracts were analyzed by HPLC-DAD-MS/MS...
2017: International Journal of Analytical Chemistry
https://www.readbyqxmd.com/read/28618374/proteomic-profiling-of-german-dornfelder-grape-berries-using-data-independent-acquisition
#4
Matthias Riebel, Petra Fronk, Ute Distler, Stefan Tenzer, Heinz Decker
Grapevine is one of the most important fruit plants throughout the world. Sequencing of the grape genome in 2007 enabled in-depth analyses of the grape proteome. Whereas many studies addressed changes in proteomic composition of grapes during ripening, we focused on the proteome of mature grape berries from Dornfelder, a characteristic red wine grape for Germany. Current data-independent acquisition proteomics technology enables the analysis of proteomic compositions in a degree of accuracy that was unreachable only a few years ago...
June 7, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28618373/structural-changes-in-cell-wall-pectins-during-strawberry-fruit-development
#5
Candelas Paniagua, Nieves Santiago-Doménech, Andrew R Kirby, A Patrick Gunning, Victor J Morris, Miguel A Quesada, Antonio J Matas, José A Mercado
Strawberry (Fragaria × anannasa Duch.) is one of the most important soft fruit. Rapid loss of firmness occurs during the ripening process, resulting in a short shelf life and high economic losses. To get insight into the role of pectin matrix in the softening process, cell walls from strawberry fruit at two developmental stages, unripe-green and ripe-red, were extracted and sequentially fractionated with different solvents to obtain fractions enriched in a specific component. The yield of cell wall material as well as the per fresh weight contents of the different fractions decreased in ripe fruit...
June 2, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28615718/genome-wide-analyses-of-sweet-family-proteins-reveal-involvement-in-fruit-development-and-abiotic-biotic-stress-responses-in-banana
#6
Hongxia Miao, Peiguang Sun, Qing Liu, Yulu Miao, Juhua Liu, Kaixing Zhang, Wei Hu, Jianbin Zhang, Jingyi Wang, Zhuo Wang, Caihong Jia, Biyu Xu, Zhiqiang Jin
Sugars Will Eventually be Exported Transporters (SWEET) are a novel type of sugar transporter that plays crucial roles in multiple biological processes. From banana, for the first time, 25 SWEET genes which could be classified into four subfamilies were identified. Majority of MaSWEETs in each subfamily shared similar gene structures and conserved motifs. Comprehensive transcriptomic analysis of two banana genotypes revealed differential expression patterns of MaSWEETs in different tissues, at various stages of fruit development and ripening, and in response to abiotic and biotic stresses...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28615681/genome-wide-analysis-of-banana-mads-box-family-closely-related-to-fruit-development-and-ripening
#7
Juhua Liu, Jing Zhang, Jianbin Zhang, Hongxia Miao, Jingyi Wang, Pengzhao Gao, Wei Hu, Caihong Jia, Zhuo Wang, Biyu Xu, Zhiqiang Jin
Proteins encoded by MADS-box genes are important transcription factors involved in the regulation of flowering plant growth and development. Currently, no systematic information exists regarding the MADS-box family in the important tropical fruit banana. Ninety-six MADS-box genes were identified from the banana (Pahang) A genome. Phylogenetic analysis indicated that Musa acuminata MCM1-AGAMOUS- DEFICIENS-SRF (MaMADS) could be divided into MIKC(c), MIKC*, Mα/β and Mγ groups. MIKC(c) could be further divided into 11 subfamilies, which was further supported by conserved motif and gene structure analyses...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28615062/metabolic-and-transcriptional-elucidation-of-the-carotenoid-biosynthesis-pathway-in-peel-and-flesh-tissue-of-loquat-fruit-during-on-tree-development
#8
Margarita Hadjipieri, Egli C Georgiadou, Alicia Marin, Huertas M Diaz-Mula, Vlasios Goulas, Vasileios Fotopoulos, Francisco A Tomás-Barberán, George A Manganaris
BACKGROUND: Carotenoids are the main colouring substances found in orange-fleshed loquat fruits. The aim of this study was to unravel the carotenoid biosynthetic pathway of loquat fruit (cv. 'Obusa') in peel and flesh tissue during distinct on-tree developmental stages through a targeted analytical and molecular approach. RESULTS: Substantial changes regarding colour parameters, both between peel and flesh and among the different developmental stages, were monitored, concomitant with a significant increment in carotenoid content...
June 14, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28611805/transcriptomic-analysis-in-strawberry-fruits-reveals-active-auxin-biosynthesis-and-signaling-in-the-ripe-receptacle
#9
Elizabeth Estrada-Johnson, Fabiana Csukasi, Carmen M Pizarro, José G Vallarino, Yulia Kiryakova, Amalia Vioque, Javier Brumos, Nieves Medina-Escobar, Miguel A Botella, José M Alonso, Alisdair R Fernie, José F Sánchez-Sevilla, Sonia Osorio, Victoriano Valpuesta
The role of auxin in ripening strawberry (Fragaria ×ananassa) fruits has been restricted to the early stages of development where the growth of the receptacle is dependent on the delivery of auxin from the achenes. At later stages, during enlargement of the receptacle, other hormones have been demonstrated to participate to different degrees, from the general involvement of gibberellins and abscisic acid to the more specific of ethylene. Here we report the involvement of auxin at the late stages of receptacle ripening...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28604689/pyrazinamide-and-derivatives-block-ethylene-biosynthesis-by-inhibiting-acc-oxidase
#10
Xiangzhong Sun, Yaxin Li, Wenrong He, Chenggong Ji, Peixue Xia, Yichuan Wang, Shuo Du, Hongjiang Li, Natasha Raikhel, Junyu Xiao, Hongwei Guo
Ethylene is an important phytohormone that promotes the ripening of fruits and senescence of flowers thereby reducing their shelf lives. Specific ethylene biosynthesis inhibitors would help to decrease postharvest loss. Here, we identify pyrazinamide (PZA), a clinical drug used to treat tuberculosis, as an inhibitor of ethylene biosynthesis in Arabidopsis thaliana, using a chemical genetics approach. PZA is converted to pyrazinecarboxylic acid (POA) in plant cells, suppressing the activity of 1-aminocyclopropane-1-carboxylic acid oxidase (ACO), the enzyme catalysing the final step of ethylene formation...
June 12, 2017: Nature Communications
https://www.readbyqxmd.com/read/28592995/the-quest-for-epigenetic-regulation-underlying-unisexual-flower-development-in-cucumis-melo
#11
David Latrasse, Natalia Y Rodriguez-Granados, Alaguraj Veluchamy, Kiruthiga Gayathri Mariappan, Claudia Bevilacqua, Nicolas Crapart, Celine Camps, Vivien Sommard, Cécile Raynaud, Catherine Dogimont, Adnane Boualem, Moussa Benhamed, Abdelhafid Bendahmane
BACKGROUND: Melon (Cucumis melo) is an important vegetable crop from the Cucurbitaceae family and a reference model specie for sex determination, fruit ripening and vascular fluxes studies. Nevertheless, the nature and role of its epigenome in gene expression regulation and more specifically in sex determination remains largely unknown. RESULTS: We have investigated genome wide H3K27me3 and H3K9ac histone modifications and gene expression dynamics, in five melon organs...
2017: Epigenetics & Chromatin
https://www.readbyqxmd.com/read/28592264/adaptation-to-new-nutritional-environments-larval-performance-foraging-decisions-and-adult-oviposition-choices-in-drosophila-suzukii
#12
Nuno F Silva-Soares, A Nogueira-Alves, P Beldade, Christen Kerry Mirth
BACKGROUND: Understanding how species adapt to new niches is a central issue in evolutionary ecology. Nutrition is vital for the survival of all organisms and impacts species fitness and distribution. While most Drosophila species exploit rotting plant parts, some species have diversified to use ripe fruit, allowing earlier colonization. The decomposition of plant material is facilitated by yeast colonization and proliferation. These yeasts serve as the main protein source for Drosophila larvae...
June 7, 2017: BMC Ecology
https://www.readbyqxmd.com/read/28588227/melon13-lipoxygenase-cmlox18-may-be-involved-in-c6-volatiles-biosynthesis-in-fruit
#13
Chong Zhang, Songxiao Cao, Yazhong Jin, Lijun Ju, Qiang Chen, Qiaojuan Xing, Hongyan Qi
To better understand the function role of the melon CmLOX18 gene in the biosynthesis of C6 volatiles during fruit ripening, we biochemically characterized CmLOX18 and identified its subcellular localization in transgenic tomato plants. Heterologous expression in yeast cells showed that the molecular weight of the CmLOX18 protein was identical to that predicted, and that this enzyme possesseed lipoxygenase activity. Linoleic acid was demonstrated to be the preferred substrate for the purified recombinant CmLOX18 protein, which exhibited optimal catalytic activity at pH 4...
June 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28587216/selenium-enrichment-of-horticultural-crops
#14
REVIEW
Martina Puccinelli, Fernando Malorgio, Beatrice Pezzarossa
The ability of some crops to accumulate selenium (Se) is crucial for human nutrition and health. Selenium has been identified as a cofactor of the enzyme glutathione peroxidase, which is a catalyzer in the reduction of peroxides that can damage cells and tissues, and can act as an antioxidant. Plants are the first link in the food chain, which ends with humans. Increasing the Se quantity in plant products, including leafy and fruity vegetables, and fruit crops, without exceeding the toxic threshold, is thus a good way to increase animal and human Se intake, with positive effects on long-term health...
June 4, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28579990/the-major-qualitative-characteristics-of-olive-olea-europaea-l-cultivated-in-southwest-china
#15
Zizhang Cheng, Mingming Zhan, Zeshen Yang, Kristina Zumstein, Huaping Chen, Qianming Huang
Olive trees, originated from Mediterranean, have been cultivated in China for decades and show great adaption to local environment. However, research on this topic is limited. In this study, the major qualitative characteristics and changes of olive grown in southwest China were investigated. The results showed that oil accumulated during fruit development and reached its maximum value when fruit had fully ripened. Phenolic and flavonoid contents increase rapidly in the early growth stage (0-90 DAFB) and then begin to decrease as fruit ripens...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28575202/evaluation-of-food-based-attractants-for-drosophila-suzukii-diptera-drosophilidae
#16
Juan Huang, Larry Gut, Matthew Grieshop
The Drosophila suzukii (Matsumura) (Diptera: Drosophilidae) is a highly invasive species attacking a wide range of ripening soft-skinned fruits. A series of laboratory choice tests were conducted to determine whether different levels of rice vinegar affected attraction of Merlot wine to D. suzukii, as well as to compare attractiveness of two common fermentation food baits: wine-vinegar and yeast-sugar water mixtures. The relative attraction of various combinations was used to develop a bait whose effectiveness was tested in the field...
June 1, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28574483/expression-profiling-of-strawberry-allergen-fra-a-during-fruit-ripening-controlled-by-exogenous-auxin
#17
Misaki Ishibashi, Hiroki Yoshikawa, Yuichi Uno
Strawberry fruit contain the allergenic Fra a proteins, members of the pathogenesis-related 10 protein family that causes oral allergic syndrome symptoms. Fra a proteins are involved in the flavonoid biosynthesis pathway, which might be important for color development in fruits. Auxin is an important plant hormone in strawberry fruit that controls fruit fleshiness and ripening. In this study, we treated strawberry fruits with exogenous auxin or auxin inhibitors at pre- and post-harvest stages, and analyzed Fra a transcriptional and translational expression levels during fruit development by real-time PCR and immunoblotting...
June 2, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28573647/brazilian-capsicum-peppers-capsaicinoids-content-and-antioxidant-activity
#18
Stanislau Bogusz, Silvia H Libardi, Fernanda F G Dias, Janclei P Coutinho, Vivian C Bochi, Daniele Rodrigues, Arlete M T Melo, Helena T Godoy
BACKGROUND: Capsicum peppers are known as a source of capsaicinoids, phenolic compounds, and antioxidants. Brazilian Capsicum peppers are important spices use in foods worldwide. However, little information is available on the chemical composition and antioxidant activity of these peppers. RESULTS: Capsaicin, dihydrocapsaicin, total phenolic compounds, and antioxidant activity were investigated in the extracts of three Brazilian peppers: Capsicum frutescens, C. chinense and C...
June 2, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28573253/in-vivo-carbon-tetrachloride-induced-hepatoprotective-and-in-vitro-cytotoxic-activities-of-garcinia-hombroniana-seashore-mangosteen
#19
Nargis Jamila, Naeem Khan, Amir Atlas Khan, Imran Khan, Sadiq Noor Khan, Zainal Amiruddin Zakaria, Melati Khairuddean, Hasnah Osman, Kyong Su Kim
BACKGROUND: Garcinia hombroniana, known as "manggis hutan" (jungle mangosteen) in Malaysia, is distributed in tropical Asia, Borneo, Thailand, Andaman, Nicobar Islands, Vietnam and India. In Malaysia, its ripened crimson sour fruit rind is used as a seasoning agent in curries and culinary dishes. Its roots and leaves decoction is used against skin infections and after child birth. This study aimed to evaluate in vivo hepatoprotective and in vitro cytotoxic activities of 20% methanolic ethyl acetate (MEA) G...
2017: African Journal of Traditional, Complementary, and Alternative Medicines: AJTCAM
https://www.readbyqxmd.com/read/28572940/influence-of-storage-temperature-and-low-temperature-conditioning-on-the-levels-of-health-promoting-compounds-in-rio-red-grapefruit
#20
Priyanka R Chaudhary, Xiang Yu, Guddadarangavvanahally K Jayaprakasha, Bhimanagouda S Patil
Commercial operations use low-temperature conditioning of citrus fruits to reduce the incidence of chilling injury (CI) during cold storage and quarantine treatments. Rio Red grapefruits (Citrus paradisi Macf) were stored for 12 weeks at 11°C or 5°C; an additional set was temperature conditioned at 16°C for 7 days before storing at 5°C (CD). Every 3 weeks, samples were assessed for chilling injury (CI) and health-promoting compounds such as ascorbic acid, carotenoids, limonoids, flavonoids, and furocoumarins...
May 2017: Food Science & Nutrition
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