Influence of daily fresh pear consumption on biomarkers of cardiometabolic health in middle-aged/older adults with metabolic syndrome: a randomized controlled trial
Negin NavaeiShirin PourafsharNeda AkhavanNicole S. LitwinElizabeth FoleyKelli S. GeorgeShannon HartleyMarcus L. ElamSangeeta RaoBahram H. ArjmandiSarah A. Johnson
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Abstract:
Previous research suggests potential for fresh pears as a functional food for promoting cardiometabolic health.Keywords:
Consumption
Healthy food
The experiment was conducted with sha01,sha02,kuerlehuangsuan pear,yelikeamute pear and huochengdong huang pear as test materials.The content of soluble solid,fruit firmness,dry matter,vitamin C,deoxidized suger,titrate acid,sucrose and others were determined in these different species.The results showed that sha02 was the best in five pear species,the others were followed by sha01,huochengdonghuang pear,yelikeamute pear and kuerlehuangsuan pear.
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pear varieties are used as the pollination of Pingguo pear for correcting the fruit shape.The result shows Chetou pear and Dachangba pear effect the fruit shape of Pingguo pear greatly,and the fruit shape will be better after their pollinating.
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The commodity characters of Korla Fragrant Pear fruit were analyzed by three years.The results showed that its commodity characters were unstable,and differences in different years,commercial fruits,special grade fruit rate,male pear and female pear rate,soluble solid content,hardness,etc;about single fruit weight,from primary orchardfrom full fruit period orchardfrom old orchard;about soluble solid content,old orchard and primary orchard was high,full fruit period orchard was low;fruit hardness and soluble solid content were difference between male pear and female pear,it was unreasonable that quality of male pear was better than that of female pear;single fruit weight of male pear was larger than female pear in these 3 years.Fruit classification of Korla Fragrant Pear existing defects,hardness and soluble solid content of special grade fruit were not better than other grade fruits.
Orchard
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The resistance to black spot disease of 368 pear genetic resources, including 5 species of Pyrus Linn, were studied in the field conditions in the national sand-pear repository at Wuhan, Hubei province, 35 accessions were evaluated by artificial inoculation. The results showed that the P. betulaefolia Bge was the strongest one and P. communis L weakest one. Resistant indexes (0%) of district clones of sandpear were: Guangdong pear 10.42、Fujian pear 12.50、Hunan pear 18.33、Guangxi pear 21.53、Zhejiang pear 21.82、Guizhou pear 27.50、Sichuan pear 23.68、Yunnan pear 23.81、Hubei pear 24.53、Japanese pear 25.00 and Jiangxi pear 27.50. 1 high resistant 8 resistant varieties or clones were identified by artificial inoculation.
Germ plasm
Pyrus communis
Black spot
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Browning
Pera
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Using‘Cuiguan'pear as material,the effect on quality of‘Cuiguan'pear fruit with different pollination varieties were studied.The results showed that the xenia of‘Cuiguan'pear was significant.‘Cuilyu'pear,‘Qingxiang'pear and‘Huanghua'pear were excellent cultivars of pollination and used in production.
Pyrus communis
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This paper takes integral apple-pear and crisp pear which are collected from Ordos Region of Inner-Mongolia as experimental materials. The result were obtained by measuring mechanical characteristics parameters and quality target of pear: with the enhancement of pear maturity, five parameters of mechanical properties reduced, sugar content decreased and the titratable acidity and moisture Content fell down; crisp pear had more moisture content than apple-pear, and more easily evaporated the moisture by comparing with the same hardness level of crisp pear and apple -pear, so crisp pear had better consumed in seasonable, extracted juice, sliced and so on. While the anti-mechanical damage ability of Apple-pear were more than crisp pear, therefore, apple -pear suits storing and transportation. Consequently, it is meaningful that established Multi-dimensional equation of motion between the pear fruit Mechanical characteristics Parameters and the quality target and carried through the significance examination.
Titratable acid
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The experiment of pollen compatibility on 4 pear varieties (Yuxiang pear, Hongxue pear, Zaoshu pear and Maidiwan pear) which are the main varieties in the northwest of Yunnan were carried out. The results showed that except Zaoshu variety, three varieties had low fruit setting rate due to self-pollination; the combination between Hongxue pear and Maidiwan pear was not good , and the combinations among Yuxiang pear, Hongxue pear and Fuyuanhuang pear were suitable.
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Taking three kinds of pears of Yangbi pear,Weishan pear,Yunlong pear as test materials.Their fruit appearance,solids,total sugar,total acid,vitamin C and crude fiber content,etc.,were compared with representatives of the northern pear species —Korla pear,pear and yellow pear varieties.The results showed that: the three kinds of Dali pear varieties have lower sugar content than the northern pear varieties,conversely high acid content,rich in vitamin C,therefore Dali three kinds of pears put up unique moderately sweet and sour flavor.
Pyrus communis
Pera
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