Mechanisms and performance of cellulose nanocrystals Pickering emulsion chitosan coatings for reducing ethylene production and physiological disorders in postharvest ‘Bartlett’ pears (Pyrus communis L.) during cold storage
Publication date: Available online 19 October 2019Source: Food ChemistryAuthor(s): Jooyeoun Jung, Zilong Deng, Yanyun ZhaoAbstractPickering emulsion coating (CNCP-CH) composed of oleic acid (OA, 1, 2, and 3%, w/w), cellulose nanocrystal (CNC, 0.1, 0.3, and 0.5%, w/w), and 2% chitosan (CH) was optimized for high emulsion stability. It was found that OA concentration played significant role on emulsion stability. Increasing OA from 1 to 3% reduced emulsion stability ∼43%, indicated by the thickness of separated cream layer in the emulsion. ‘Bartlett’ pears (Pyrus communis L.) coated by CNCP-CH containing 1% OA showed s...
Source: Food Chemistry - October 20, 2019 Category: Food Science Source Type: research
Analysis of factors related to browning of Dangshan pear (Pyrus spp.) wine
Publication date: Available online 17 October 2019Source: Food ChemistryAuthor(s): Hua Yang, Tiantian Tian, Hong Gu, Xiaomin Li, Guolin Cai, Junyong Sun, Dianhui Wu, Jian LuAbstractThe effects of different dissolved oxygen concentrations (DOC) on the browning degree, amino acids, total phenols, reducing sugars, polyphenoloxidase (PPO), peroxidase (POD), phenylalanine ammonia-lyase (PAL) of pear wine, and the relationship between various quality indicators and browning degree were investigated. Dynamic model fitting analysis of the changes of physiochemical indicators of pear wine in the storage process were performed. The ...
Source: Food Chemistry - October 19, 2019 Category: Food Science Source Type: research
Transcriptomic analysis of early fruit development in Chinese white pear (Pyrus bretschneideri Rehd.) and functional identification of PbCCR1 in lignin biosynthesis
The content of stone cells and lignin is one of the key factors affecting the quality of pear fruit. In a previous study, we determined the developmental regularity of stone cells and lignin in ‘Dangshan Su’ p... (Source: BMC Plant Biology)
Source: BMC Plant Biology - October 11, 2019 Category: Biology Authors: Xueqiang Su, Yu Zhao, Han Wang, Guohui Li, Xi Cheng, Qing Jin and Yongping Cai Tags: Research article Source Type: research
A low molecular-weight cyclophilin localizes in different cell compartments of Pyrus communis pollen and is released in vitro under Ca2+ depletion
Publication date: Available online 27 September 2019Source: Plant Physiology and BiochemistryAuthor(s): Luigi Parrotta, Iris Aloisi, Chiara Suanno, Claudia Faleri, Agnieszka Kiełbowicz-Matuk, Luca Bini, Giampiero Cai, Stefano Del DucaAbstractCyclophilins (CyPs) are ubiquitous proteins involved in a wide variety of processes including protein maturation and trafficking, receptor complex stabilization, apoptosis, receptor signaling, RNA processing, and spliceosome assembly. The ubiquitous presence is justified by their peptidyl-prolyl cis-trans isomerase (PPIase) activity, catalyzing the rotation of X-Pro peptide bonds from...
Source: Plant Physiology and Biochemistry - September 28, 2019 Category: Biochemistry Source Type: research
Identification and functional characterization of SOC1-like genes in Pyrus bretschneideri.
Abstract
Flowering is a prerequisite for pear fruit production. Therefore, the development of flower buds and the control of flowering time are important for pear trees. However, the molecular mechanism of pear flowering is unclear. SOC1, a member of MADS-box family, is known as a flowering signal integrator in Arabidopsis. We identified eight SOC1-like genes in Pyrus bretschneideri and analyzed their basic information and expression patterns. Some pear SOC1-like genes were regulated by photoperiod in leaves. Moreover, the expression patterns were diverse during the development of pear flower buds. Two mem...
Source: Genomics - September 14, 2019 Category: Genetics & Stem Cells Authors: Liu Z, Wu X, Cheng M, Xie Z, Xiong C, Zhang S, Wu J, Wang P Tags: Genomics Source Type: research
Properties of arabinogalactan-proteins in European pear (Pyrus communis L.) fruits.
Abstract
Arabinogalactans (AGs) and arabinogalactan-proteins (AGPs) were partially purified from an extract of fruits of the European pear (Pyrus communis L.) by DEAE-cellulose ion-exchange and Sepharose 6B gel-filtration chromatography. Among 7 AG(P)-containing fractions, a neutral AGP (SE-1) was confirmed to be highly purified (Mr 67,000) and rich in L-Ara and Gal; this fraction included a small amount (2.6%, w/w) of protein and showed the highest reactivity forming precipitate with β-Glc Yariv reagent among the 7 fractions, the intensity of which was comparable to that of gum arabic, a standard AGP. An...
Source: Carbohydrate Research - September 12, 2019 Category: Genetics & Stem Cells Authors: Tsumuraya Y, Ozeki E, Ooki Y, Yoshimi Y, Hashizume K, Kotake T Tags: Carbohydr Res Source Type: research
Temporal and spatial variation in bacterial communities of “Jonagold” apple (Malus x domestica Borkh.) and “Conference” pear (Pyrus communis L.) floral nectar
Nectar bacterial community composition was dominated by only a few bacterial species and differed strongly among fruit species. The nectar of pear (b) was dominated by Actinobacteria, Proteobacteria, and Firmicutes, while apple nectar (a) was strongly enriched by Bacteroidetes. Bacterial richness and diversity were found to fluctuate during flowering. AbstractProduction of many agricultural crops and fruits strongly depends on pollinators. For instance, pome fruits such as apple and pear are highly dependent on pollination for fruit set, fruit quality, and yield. Nectar is often inhabited by microbes, most often yeasts ...
Source: MicrobiologyOpen - August 21, 2019 Category: Microbiology Authors: Jolien Smessaert,
Maarten Van Geel,
Christel Verreth,
Sam Crauwels,
Olivier Honnay,
Wannes Keulemans,
Bart Lievens Tags: ORIGINAL ARTICLE Source Type: research
Fatty acid profile of fruits (pulp and peel) and cladodes (young and old) of prickly pear [Opuntia ficus-indica (L.) Mill.] from six Spanish cultivars
Publication date: Available online 11 August 2019Source: Journal of Food Composition and AnalysisAuthor(s): Lucía Andreu-Coll, Marina Cano-Lamadrid, Esther Sendra, Ángel Carbonell-Barrachina, Pilar Legua, Francisca HernándezAbstractThe aim of this research was to determine the fatty acid profile of the botanical parts (young and old cladodes, fruit pulp and peel) of six Opuntia ficus-indica (L.) Mill. cultivars grown in Spain to evaluate their potential uses for human nutrition, animal feeding and/or industrial use. Nine fatty acids were identified in fruit peel and young cladodes, eight in fruit pulp, and seven in old ...
Source: Journal of Food Composition and Analysis - August 12, 2019 Category: Food Science Source Type: research
Investigations into the production of volatile compounds in Korla fragrant pears (Pyrus sinkiangensis Yu)
Publication date: Available online 8 August 2019Source: Food ChemistryAuthor(s): Jianqiu Chen, Jiahong Lü, Zishun He, Feng Zhang, Shaoling Zhang, Huping ZhangAbstractThe composition of volatile compounds in Korla fragrant pears was determined using headspace solid-phase microextraction followed by a gas chromatography–mass spectrometry analysis using fruits at 30, 90, and 150 days after bloom. Hexanal, (E)-2-hexenal, 1-hexanol, (E)-2-hexen-1-ol, and hexyl acetate were identified as the major compounds. The composition of volatile compounds was associated with fatty acid concentrations and key enzyme activity in the lipo...
Source: Food Chemistry - August 9, 2019 Category: Food Science Source Type: research
Quality Maintenance of Beef Burger Patties by Direct Addiction or Encapsulation of a Prickly Pear Fruit Extract
In this study, a Prickly Pear Extract (PPE) was added to beef burger patty formulations both by direct application and encapsulation in alginate beads. Beef burger patties were evaluated during refrigerated storage (up to 8 d at 4 °C) in terms of microbial quality, pH, texture and color variation.
At the end of storage, burger samples incorporating PPE and encapsulated PPE showed significantly (p (Source: Frontiers in Microbiology)
Source: Frontiers in Microbiology - August 8, 2019 Category: Microbiology Source Type: research
[ASAP] Transcriptomic and Gas Chromatography –Mass Spectrometry Metabolomic Profiling Analysis of the Epidermis Provides Insights into Cuticular Wax Regulation in Developing ‘Yuluxiang’ Pear Fruit
Journal of Agricultural and Food ChemistryDOI: 10.1021/acs.jafc.9b01899 (Source: Journal of Agricultural and Food Chemistry)
Source: Journal of Agricultural and Food Chemistry - July 19, 2019 Category: Food Science Authors: Xiao Wu †, Xinjie Shi†, Mudan Bai‡, Yangyang Chen†, Xiaolong Li†, Kaijie Qi†, Peng Cao†, Mingzhi Li§, Hao Yin*†, and Shaoling Zhang*† Source Type: research
Extracts of the leaves of Pyrus ussuriensis Maxim. Alleviate itch sensation via TSLP-dependent manner in mouse models of atopic dermatitis
This study aimed to determine the effects of PUL extract and its fractions in decreasing the itch sensation and skin lesions in two distinct animal models of atopic dermatitis (AD) induced by dinitrofluorobenzene (DNFB) or house dust mite (HDM). Our results showed that the total ethanol extract of PUL decreased the scratching behavior in mice with DNFB- and HDM-induced AD. Moreover, the ethyl acetate fraction of PUL significantly improved the overall condition of the mice with AD induced by HDM. Further, we used HEK293T cells that express receptors and ion channels for thymic stromal lymphopoietin (TSLP), a potent pruritog...
Source: Physiology and Behavior - July 18, 2019 Category: Physiology Source Type: research
Molecules, Vol. 24, Pages 2611: Physical –Chemical Composition and Quality Related Changes in “Ruaner” Pear (Pyrus ussuriensis) During Freezing–Thawing Period
Molecules, Vol. 24, Pages 2611: Physical–Chemical Composition and Quality Related Changes in “Ruaner” Pear (Pyrus ussuriensis) During Freezing–Thawing Period
Molecules doi: 10.3390/molecules24142611
Authors:
Yulian Liu
Yuxia Wu
Fei Che
Zhimin Zhang
Baihong Chen
“Ruaner” pear (Pyrus ussuriensis Maxim.) is a fruit crop that is frequently served frozen in China. It is a typical postharvest ripening fruit that needs to ripen after harvest before it can be eaten, and freezing–thawing is one way that pears are treated during postharvest ripening. In order to study...
Source: Molecules - July 17, 2019 Category: Chemistry Authors: Yulian Liu Yuxia Wu Fei Che Zhimin Zhang Baihong Chen Tags: Article Source Type: research
Molecules, Vol. 24, Pages 2595: Overexpression of Pear (Pyrus pyrifolia) CAD2 in Tomato Affects Lignin Content
This study clearly indicated that overexpressing PpCAD2 increased the lignin deposition of transgenic tomato plants, and thus validated the function of PpCAD2 in lignin biosynthesis. (Source: Molecules)
Source: Molecules - July 16, 2019 Category: Chemistry Authors: Mingtong Li Chenxia Cheng Xinfu Zhang Suping Zhou Lixia Li Shaolan Yang Tags: Article Source Type: research
Synthesis of Indole-3-acetic acid and Indole-3-butyric acid Loaded Zinc Oxide Nanoparticles: Effects on Rhizogenesis
Publication date: Available online 10 July 2019Source: Journal of BiotechnologyAuthor(s): Ayşe Karakeçili, Serdar Korpayev, Hatice Dumanoğlu, Shabnam AlizadehAbstractThe aim of this work was to investigate the use of zinc oxide nanoparticles (nZnO) as nanocarriers for plant auxins indole-3-acetic acid (IAA) and indole-3-butyric acid (IBA) and determine the effects on rhizogenesis in micro cuttings of different Pyrus species. Auxin loaded nanoparticles (IAA-nZnO and IBA-nZnO) were characterized for particle size, morphology, thermal behavior and chemical structure. A high loading capacity was observed for both auxins (˜...
Source: Journal of Biotechnology - July 12, 2019 Category: Biotechnology Source Type: research
