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Rosa roxburghii

Guangjing Chen, Jianquan Kan
In this study, the response surface methodology was utilized to determine optimum conditions for extracting the polysaccharides from Rosa roxburghii Tratt fruit (RRTPs) using ultrasonic-assisted extraction, and the characterization and antioxidant activities of the RRTPs were discussed. RRTPs yield was 6.59 ± 1.34%, which was well consistent with the predicted value of 6.716%, under the following optimum conditions: ratio of water to raw material 40.18 mL/g, extraction temperature 78.8 °C, ultrasonic power 148 W, and extraction time 32...
March 2018: Journal of Food Science and Technology
Huizhu Wang, Yan Li, Zhihui Ren, Zhongcheng Cong, Mengjie Chen, Lin Shi, Xu Han, Jin Pei
An extraction assay applying microwave-assisted enzymatic treatment for polysaccharides in Rosa roxburghii was developed using response surface methodology. The process parameters were optimized using Plackett-Burman (PB) design and central composite design to enhance the Rosa roxburghii polysaccharide extraction yield. Specific conditions (microwave power, 575W; microwave time, 18min; liquid-to-material ratio, 13.5:1mL/g; and enzyme dose, 6.5g/mL) generated an experimental yield of 36.21±0.62%, which closely agreed with the predicted value of 35...
June 2018: International Journal of Biological Macromolecules
Lei Wang, Bin Zhang, Jie Xiao, Qiang Huang, Chao Li, Xiong Fu
Water-soluble polysaccharides (RTFP) were extracted from Rosa roxburghii Tratt fruit by hot water method. The physicochemical, functional, and hypoglycemic properties of RTFP were investigated. The results revealed that RTFP mainly contained carbohydrates (63.79 ± 0.73%, g/g), uronic acids (14.8 ± 0.06%, g/g), and proteins (4.10 ± 0.58%, g/g). RTFP was composed of arabinose, galactose, glucose, mannose, xylose, and fucose with molar percentages of 33.8, 37.3, 20.7, 1.74, 3.43, and 2.95%, respectively...
May 30, 2018: Food Chemistry
Guangjing Chen, Jianquan Kan
In this study, a novel water-soluble polysaccharide (RRTP1-1) was obtained from Rosa roxburghii Tratt fruit through the ultrasonic-assisted extraction followed by anion-exchange and size-exclusion chromatography purification. The primary structure of RRTP1-1 was investigated by UV, FT-IR, HPLC, GC-MS,1 H and13 C NMR spectroscopy. Chemical composition analysis revealed that RRTP1-1 had an average molecular weight of 97.58kDa and consisted of Man, Rha, GlcA, GalA, Glc, Gal, Ara and Xyl in a molar ratio of 2.88:1...
February 2018: International Journal of Biological Macromolecules
Ping Xu, Xingxia Liu, Xiwen Xiong, Wenbo Zhang, Xinhua Cai, Peiyong Qiu, Minghua Hao, Lijuan Wang, Dandan Lu, Xiuhua Zhang, Wancai Yang
Radioprotection is an important approach to reduce the side-effects of radiotherapy. The radioprotective effect of the flavonoids of Rosa roxburghii Tratt (FRT) has been confirmed, and the mechanism has been identified as theBcl-2/caspase-3/PARP-1 signaling pathway. In this study, we investigated the effects of FRT on the intercellular adhesion molecule (ICAM), and vascular cell adhesion protein (VCAM) in addition to apoptosis-related proteins such as Bax/Bcl-2, p-ERK/ERK, p-p53/p53, and p-p38/p38. In the present study, we focused on the effect of FRT on PARP-1/AIF...
November 2017: Journal of Cellular Biochemistry
Meng-Hua Liu, Qi Zhang, Yuan-He Zhang, Xian-Yuan Lu, Wei-Ming Fu, Jing-Yu He
Both Rosa roxburghii and R. sterilis, belonging to the Rosaceae, are endemic species in Guizhou Province, China. The fruits of these two species are mixed-used as functional food in the region. Aiming to elucidate the phytochemical characteristics of R. roxburghii and R. sterilis fruits, the essential oils and constituents in a methanol extract have been analyzed and compared by GC-MS and UFLC/Q-TOF-MS, respectively. As a result, a total of 135 volatile compounds were identified by GC-MS and 91 components were different between R...
September 9, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Ping Xu, Xinhua Cai, Wenbo Zhang, Yana Li, Peiyong Qiu, Dandan Lu, Xiaoyang He
The objective of our study was to assess the radioprotective effect of flavonoids extracted from Rosa roxburghii Tratt (FRT) and investigate the role of Bcl-2(Ca(2+))/Caspase-3/PARP-1 pathway in radiation-induced apoptosis. Cells and mice were exposed to (60)Co γ-rays at a dose of 6 Gy. The radiation treatment induced significant effects on tissue pathological changes, apoptosis, Ca(2+), ROS, DNA damage, and expression levels of Bcl-2, Caspase-3 (C-Caspase-3), and PARP-1. The results showed that FRT acted as an antioxidant, reduced DNA damage, corrected the pathological changes of the tissue induced by radiation, promoted the formation of spleen nodules, resisted sperm aberration, and protected the thymus...
October 2016: Apoptosis: An International Journal on Programmed Cell Death
Min Lu, Huaming An, Liangliang Li
Rosa roxburghii Tratt is an important commercial horticultural crop in China that is recognized for its nutritional and medicinal values. In spite of the economic significance, genomic information on this rose species is currently unavailable. In the present research, a genome survey of R. roxburghii was carried out using next-generation sequencing (NGS) technologies. Total 30.29 Gb sequence data was obtained by HiSeq 2500 sequencing and an estimated genome size of R. roxburghii was 480.97 Mb, in which the guanine plus cytosine (GC) content was calculated to be 38...
2016: PloS One
Xiuqin Yan, Xue Zhang, Min Lu, Yong He, Huaming An
Rosa roxburghii Tratt. is a well-known ornamental rose species native to China. In addition, the fruits of this species are valued for their nutritional and medicinal characteristics, especially their high ascorbic acid (AsA) levels. Nevertheless, AsA biosynthesis in R. roxburghii fruit has not been explored in detail because of a lack of genomic resources for this species. High-throughput transcriptomic sequencing generating large volumes of transcript sequence data can aid in gene discovery and molecular marker development...
April 25, 2015: Gene
Yang Chen, Zhong-Jing Liu, Jia Liu, Li-Kun Liu, Er-Shao Zhang, Wei-Ling Li
BACKGROUND: Rosa Roxburghii Tratt is a promising wild fruit crop in Southwest China. Its extracts have been used as traditional Chinese medicine, which benefit immune responses and cure various health disorders. However, whether Rosa Roxburghii Tratt polysaccharides could inhibit metastasis and invasion of ovarian cancer cells remains unknown. MATERIALS AND METHODS: Effects of crude polysaccharides from Rosa Roxburghii Tratt on the viability of ovarian cancer A2780 cells were detected by MTT assay...
2014: Asian Pacific Journal of Cancer Prevention: APJCP
Huanzhou Li, Ping Qiu, Juanhong Wang, Congcong Niu, Suhua Pan
This study aimed to investigate the effects of Compound Ginkgo biloba (CGB) on alterations in intestinal permeability and inflammation caused by endotoxin in chronic alcohol-induced liver injury. CGB was prepared by Ginkgo biloba extract and Rosa roxburghii in a 1 : 1 proportion. Rats were divided into four groups: control, ethanol, high-dosage CGB (0.6 g kg(-1) d(-1)) and low-dosage CGB (0.2 g kg(-1) d(-1)) group. Rats in the control group ingested a Lieber-DeCarli control liquid diet, while rats in the ethanol and CGB-treated groups ingested a Lieber-DeCarli alcohol liquid diet for eight weeks...
February 2015: Food & Function
Ping Xu, Wen-Bo Zhang, Xin-Hua Cai, Dan-Dan Lu, Xiao-Yang He, Pei-Yong Qiu, Jiao Wu
BACKGROUND: To study the radioprotective effects of flavonoids from Rosa roxburghii Tratt (FRT). MATERIALS AND METHODS: The radioprotective effects of FRT were investigated by examining cell viability, 30-day survival of mice and the number of colony-forming units in spleen (CFU-S) after total-body 60Co irradiation. RESULTS: The survival rates of irradiated cells gradually increased with increasing concentrations of FRT. The survival rate was the highest at 87% with a concentration of 30 μg/mL...
2014: Asian Pacific Journal of Cancer Prevention: APJCP
Ming Huang, Qiang Xu, Xiu-Xin Deng
Chestnut rose (Rosa roxburghii Tratt) is a fruit crop that contains unusually high levels of l-ascorbic acid (AsA; ∼1300 mg 100g(-1) FW). To explore the mechanisms underlying AsA metabolism, we investigated the distribution and abundance of AsA during fruit development. We also analyzed gene expression patterns, enzyme activities, and content of metabolites related to AsA biosynthesis and recycling. AsA first accumulated during late fruit development and continued to accumulate during ripening, with the highest accumulation rate near fruit maturity...
September 1, 2014: Journal of Plant Physiology
Jun Li, Ai-hua Zhang, Yu-jiang Ren, Zhong-yi Liu, Xiao-xin Huang, Da-ping Yang
OBJECTIVE: To explore the influence of rosa roxburghii tratt preparation on immune function of arseniasis patients caused by burning coal. METHODS: According to the diagnosis standard for endemic arseniasis(WS/T 211-2001), 62 cases of arseniasis patients who resided in endemic arseniasis area in Guizhou province were selected and divided stratified randomly into two groups: rosa roxburghii tratt juice treatment group and superoxide dismutase(SOD)-enriched rosa roxburghii tratt juice treatment group, with 31 patients in each group...
September 2013: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
Irene Joy I Dela Peña, Seo Young Yoon, June Bryan de la Peña, Subin Park, Bitna Yoon, Hee Jin Kim, Se Hee Paek, Yonh Ki Seo, Byoung Seok Moon, Jae Hoon Cheong
BACKGROUND: Ethanol (EtOH) is one of the oldest recreational substances known to man, primarily taken because it induces a sense of well-being (euphoric effects) and relaxation (anxiolytic effects). EtOH use entails various negative consequences. Of particular interest are EtOH-induced psychomotor alterations, because of its immediate manifestation and adverse consequences. Rosa roxburghii (RR), a wild plant of Southwest China, has gained attention on account of its numerous beneficial effects on the immune, nervous, and cardiovascular systems...
January 2014: American Journal of Drug and Alcohol Abuse
Wei Liu, Su-Yi Li, Xin-En Huang, Jiu-Jie Cui, Ting Zhao, Hua Zhang
OBJECTIVE: Traditional Chinese herbal medicines have a very long history. Rosa roxburghii Tratt and Fagopyrum cymosum are two examples of plants which are reputed to have benefits in improving immune responses, enhancing digestive ability and demonstrating anti-aging effects. Some evidence indicates that herbal medicine soups containing extracts from the two in combination have efficacy in treating malignant tumors. However, the underlying mechanisms are far from well understood. The present study was therefore undertaken to evaluate anticancer effects and explore molecular mechanisms in vitro...
2012: Asian Pacific Journal of Cancer Prevention: APJCP
Elaine A Porter, Alexander A van den Bos, Geoffrey C Kite, Nigel C Veitch, Monique S J Simmonds
LC-UV-MS/MS analysis of leaf extracts from 146 accessions of 71 species of Rosa revealed that some taxa accumulated flavonol O-glycosides acylated with 3-hydroxy-3-methylglutaric acid, which are relatively uncommon in plants. The structures of two previously unrecorded examples isolated from Rosa spinosissima L. (syn. Rosa pimpinellifolia L.) were elucidated using spectroscopic and chemical methods as the 3-O-α-L-rhamnopyranosyl-(1→2)-[6-O-(3-hydroxy-3-methylglutaryl)-β-D-galactopyranosides] of kaempferol (3,5,7,4'-tetrahydroxyflavone) and quercetin (3,5,7,3',4'-pentahydroxyflavone)...
September 2012: Phytochemistry
Ming Huang, Qiang Xu, Xiuxin Deng
Chestnut rose (Rosa roxburghii Tratt), a non-domesticated potential fruit crop, is susceptible to infection by powdery mildew. A small-scale customized macro-array was assembled with cDNA clones from a suppression subtractive hybridization library enriched for defense transcripts and used to screen for differentially expressed genes induced by powdery mildew infection. Three photorespiratory genes, encoding the small subunit of RuBisCO (ribulose-1,5-bisphosphate carboxylase/oxygenase), RuBisCO activase and serine-glyoxylate aminotransferase, were identified in this screen...
August 2012: Molecular Biology Reports
Zhi-kai Dai, Xiao-sheng Yang, Li-mei Yu
OBJECTIVE: To investigate anticancer effects of 5-fluorouracil (5-FU) combined with CL, extract of Rosa roxburghii Tratt on human endometrial adenocarcinoma cell line (JEC). METHODS: JEC cells cultured in vitro in the logarithmic growth phase were seeded in the culture plate and divided into the control group (RPMI 1640), the positive group (10(-4) mol/L 5-FU), the CL groups (at the dose of 0.01, 0.1, 1, 10, and 100 microg/mL), and the CL (0.01, 0.1, 1, 10, and 100 microg/mL) combined with 5-FU groups...
August 2011: Chinese Journal of Integrated Traditional and Western Medicine
Qiang Xu, Xiuxin Deng
BACKGROUND: Chestnut rose (Rosa roxburghii Tratt) is a promising wild fruit crop in Southwest China. However, chestnut rose suffers from several important diseases such as powdery mildew and black spot. Cloning and phylogenetic analysis of plant immunity related genes will strengthen the evolutionary knowledge of plant immune system and will facilitate the utilization of candidate genes in disease resistance breeding programs. FINDINGS: Serine/threonine kinase (STK) genes, encoding one of the important proteins for defense signal transduction, were cloned from 'chestnut rose'...
2010: BMC Research Notes
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