New Compounds fromZizyphus vulgaris

Mukhtar, Hayat M.; Ansari, S. H.; M, Ali; Naved, Tanveer

doi:10.3109/13880200490891890

Cited by 34 publications

(27 citation statements)

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“…), are cultivated economically in several countries. It is a species of about 40 species and grows mainly in tropical and subtropical parts of the world (Mukhtar et al, 2004;Laamouri, 2009). Three species are known in Tunisia: Z. lotus, Z. spina-christi and Z. jujuba.…”

Section: Introductionmentioning

confidence: 99%

Chemical compositions of the Tunisian Ziziphus jujuba oil

Elaloui

Laamouri

Albouchi

et al. 2014

Emir. J. Food Agric

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Thirteen fatty acids were identified from the pulps of four Tunisian Ziziphus jujuba ecotypes (Sfax, Choutrana, Mahres and Mahdia), using capillary gaseous chromatography method. These oils presented 8.31% to 12.35% of dry weights. Compared to the other ecotypes, Mahres and Choutrana were the richest of the oleic acid. The palmitic acid was the most important compound of the Sfax ecotype. Unsaturated fatty acids ranged from 62.63% to 72.40% of the total fatty acids of each ecotype. So a ratio of the unsaturated/saturated (U/S) varied from 1.68 to 2.37. The β-sitosterol and the Stigmasterol were identified as major sterols. The β-sitosterol was the prominent component in the all ecotypes and the highest level (10.65 mg/100g) was noted in Choutrana ecotype. Stigmasterol was more abundant in Sfax (16.12 mg/100g) and Choutrana (4.67 mg/100g) ecotypes. The campesterol sterol was identified only in Sfax and Choutrana ecotypes being more important (2.4 mg/100g) in Choutrana pulps.

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Section: Introductionmentioning

confidence: 99%

Chemical compositions of the Tunisian Ziziphus jujuba oil

Elaloui

Laamouri

Albouchi

et al. 2014

Emir. J. Food Agric

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“…Ziziphusjujuba, commonly called jujube, this plant usually grown in tropical and sub-tropical regions in the world [19].It is a small deciduous tree or shrub reaching a height of 5-12 metres, usually with thorny branches. The leaves are shiny-green, ovate-acute, 2-7 centimetres long and 1-3 centimetres wide, with three conspicuous veins at the base, and a finely toothed margin.…”

Section: Introductionmentioning

confidence: 99%

Determination of Some Physical Properties of Dried Jujube Fruit

Pourjafar¹

2017

IRA-JAS

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Some physical properties of Iranian Jujube fruit were evaluated. Jujube fruit samples mean values of length, width, thickness were found as 18.005mm, 14.96 mm, 15.26 mm. Arithmetic mean diameter, geometric mean diameter were found as 16.08mm, 16.01 respectively and surface area, Sphericity, porosity, mass, volume, bulk density and true density were also found as: 805.65 mm2 ,89%, 77.2%, 1.45gr, 2.61 cm3 , 0.23gr cm-3, 0.55gr cm-3 respectively. Projected area perpendicular to length, width and thickness were measured as, 152.03 mm2, 220.02 mm2, 271.4mm2 respectively. With comparison between friction coefficients on different surface for Jujube fruit. The results showed that the static coefficient of friction was more than dynamic coefficient of friction.The tests done on the galvanized steel surface, plywood and glass surface. The most coefficient of friction was found on the plywood surface and the least coefficient of friction was measured on the glass surface.

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“…), which is mainly distributed in tropical and subtropical regions of the world, is a tree of the Rhamnaceae family (Li et al, 2007;Mukhtar et al, 2004;Su et al, 2005). Jujube is a popular and profitable fruit, and is much admired due to its high nutritional value.…”

Section: Introductionmentioning

confidence: 99%

Physicochemical and Functional Properties of Chinese Jujube (ziziphus jujube mill.) Seeds Protein Concentrate

Zang

Zhang

Liu

et al. 2015

FSTR

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About 8 million tons of jujube pomace arise within a year in China. Bioconversion of food processing residues is receiving increased attention because these residual materials represent a possible and utilizable resource for conversion into useful products. To explore the application of Chinese jujube (Ziziphus jujube Mill.) seeds protein concentrate (ZPI ) in food industry, its physiochemical and functional properties were analyzed in this study. The free sulfhydryl content of ZPI is 7.1 × 10 _ 6 mol/g of protein at pH 8.0. Differential scanning calorimetry analyses showed that ZPI had only one endothermic peak with denaturation temperature of about 91℃. Amino acid analyses revealed that ZPI exhibited high levels of glutamic acid, aspartic acid and arginine. The least gelation concentration (LGC) of ZPI is ~8% at pH 7.0, whereas the protein solubility, emulsifying activity, emulsion stability, and waterholding capacity of ZPI were much lower than those of soybean protein concentrate (SPI). These results suggest that ZPI could be used as a valuable source of protein and gel.Keywords: Chinese jujube seed protein concentrate (ZPI), amino acid composition, physiochemical property, functional property IntroductionJujube (Zizyphus jujube Mill.), which is mainly distributed in tropical and subtropical regions of the world, is a tree of the Rhamnaceae family (Li et al., 2007;Mukhtar et al., 2004;Su et al., 2005). Jujube is a popular and profitable fruit, and is much admired due to its high nutritional value. Thus, Chinese jujube has been commonly used in traditional Chinese medicine and also used as food for thousands of years. The Chinese share of world jujube production is about 90% and its production has increased in the last ten years due to the demands for food and pharmaceutical applications (Li et al., 2005;Su et al., 2005), with a total yield of 36 million tons in 2008 (MOA, 2009. About 80% of the annual Chinese jujube production has been consumed in fresh, dried forms and juice, and therefore ~8 million tons of jujube pomace arise annually. These wastes pose potential disposal and pollution problems along with loss of valuable biomass and nutrients.Bioconversion of food processing residues is receiving increased attention because these residues represent a possible and utilizable resource for conversion into useful products. In this context, the utilization of wastes of fruit processing as a source of functional ingredients is a promising field (Schieber et al., 2001 Material and MethodsMaterials Chinese jujube seeds (Ziziphus jujube Mill.) were obtained from Henan Haoxiangni Co., Ltd. Dried soybean (Glycine max) seeds were obtained from the local market. All reagents used in the present study were of analytical grade or better grade.Preparation of seed protein concentrate About 1.0 kg of jujube seeds or soybean seeds were soaked in distilled water overnight and homogenized in four volumes of an aqueous buffer (50 mM phosphate buffered saline (PBS), 1% polyvinylpolypyrrolidone, pH 9.0) using a Waring blender...

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New Compounds fromZizyphus vulgaris

Cited by 34 publications

References 0 publications

Chemical compositions of the Tunisian Ziziphus jujuba oil

Chemical compositions of the Tunisian Ziziphus jujuba oil

Determination of Some Physical Properties of Dried Jujube Fruit

Physicochemical and Functional Properties of Chinese Jujube (<i>ziziphus jujube</i> mill.) Seeds Protein Concentrate

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