Zalingei, Sudan

University of Zalingei
Zalingei, Sudan

The University of Zalingei is a university based in the town of Zalingei in the state of Central Darfur, Sudan.The university was established in 1994 as a public university funded by the Ministry of Higher Education and Scientific Research.As of September 2011, the university was a member in good standing of the Association of African Universities. Wikipedia.

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Zhou C.,Jiangsu University | Ma H.,Jiangsu University | Yu X.,Jiangsu University | Liu B.,Chinese Academy of Agricultural Sciences | And 4 more authors.
Ultrasonics Sonochemistry | Year: 2013

The ultrasonic horn and bath reactors were compared based on production of angiotensin-converting-enzyme (ACE) inhibitory peptides from defatted wheat germ proteins (DWGP). The DWGP was sonicated before hydrolysis by Alcalase. Degree of hydrolysis, ACE-inhibitory activity, surface hydrophobicity, fluorescence intensity, free sulfhydryl (SH), and disulfide bond (SS) were determined. The highest ACE-inhibitory activity of DWGP hydrolysate was obtained at power intensity of 191.1 W/cm2 for 10 min in the ultrasonic horn reactor. The fixed frequency of 33 kHz and the sweep frequency of 40 ± 2 kHz resulted in the maximum ACE-inhibitory activity. The combined irradiation of dual fixed frequency (24/68 kHz) produced significant increase in ACE-inhibitory activity compared with single frequency (33 kHz). The ultrasonic probe resulted in significant higher ACE-inhibitory activity compared with ultrasonic bath operating at single or dual fixed and sweep frequencies. The changes in conformation of the DWGP due to sonication were confirmed by the changes in fluorescence intensity, surface hydrophobicity, SHf and SS contents and they were found in conformity with the ACE-inhibitory activity in case of the ultrasonic horn reactor but not in bath reactor. © 2013 Elsevier B.V. All rights reserved.

PubMed | Jiangsu University, University of Zalingei, Southwest University of Science and Technology and China Agricultural University
Type: | Journal: Ultrasonics sonochemistry | Year: 2015

The impact of dual-frequency power ultrasound (DPU) on the molecular weight distribution (MWD) of corn gluten meal (CGM) hydrolysates and its mechanism were investigated in the present study. The mechanism was studied from aspects of structural and nano-mechanical characteristics of the major protein fractions of CGM, viz. zein and glutelin. The results of molecular weight distribution indicated that DPU pretreatment of CGM was beneficial to the preparation of peptides with molecular weights of 200-1000Da. Moreover, FTIR spectral analysis and atomic force microscopy characterization showed that the DPU pretreatment changed the contents of secondary structure of proteins, decreased the particle height and surface roughness of glutelin, reduced the Youngs modulus and stiffness of zein while increased its adhesion force. In conclusion, DPU pretreatment of proteins before proteolysis is an efficient alternative method to produce short-chain peptides because of its positive effects originating from acoustic cavitation on the molecular conformation, nano-structures and nano-mechanical properties of proteins as well.

Eissa E.A.,Food Research Center | Babiker E.E.,University of Khartoum | Yagoub A.E.A.,University of Zalingei
Animal Production Science | Year: 2011

Physicochemical, microbiological and sensory attributes of fresh and cold-stored (5-15 days) fermented zabadi from goat's milk were analysed and then compared with those of cow's milk. Results indicated that the gross nutrients of fresh goat's milk changed after processing. Zabadi fermentation significantly decreased the lactose content and pH of the fresh milk in both zabadi types. Cow-milk zabadi was more viscous than goat-milk zabadi. Cold storage resulted in significant changes in gross composition of both zabadi types, in particular after 10 days of storage. Lactose and pH decreased further if the storage period was prolonged. Lactobacillus spp. and Streptococcus spp. are the main active organisms in goat- and cow-milk zabadi. The number of total bacteria and yeast increased significantly within 10 days of storage, decreasing thereafter. Staphylococcus aureus and Salmonella spp. were absent. Coliforms and faecal coliforms were detected in both zabadi types; however, they disappeared after 5 days of storage. Goat-milk zabadi showed significantly lower sensory scores than cow-milk zabadi. Both zabadi types can withstand storage to a maximum of 10 days, with the sensory scores decreasing thereafter.

Salih H.,Chinese Academy of Agricultural Sciences | Salih H.,Huazhong Agricultural University | Salih H.,University of Zalingei | Gong W.,Chinese Academy of Agricultural Sciences | And 4 more authors.
BMC Genetics | Year: 2016

Background: MYB family proteins are one of the most abundant transcription factors in the cotton plant and play diverse roles in cotton growth and evolution. Previously, few studies have been conducted in upland cotton, Gossypium hirsutum. The recent release of the G. hirsutum genome sequence provides a great opportunity to identify and characterize the entire upland cotton MYB protein family. Results: In this study, we undertook a comprehensive genome-wide characterization and expression analysis of the MYB transcription factor family during cotton fiber development. A total of 524 non-redundant cotton MYB genes, among 1986 MYB and MYB-related putative proteins, were identified and classified into four subfamilies including 1R-MYB, 2R-MYB, 3R-MYB, and 4R-MYB. Based on phylogenetic tree analysis, MYB transcription factors were divided into 16 subgroups. The results showed that the majority (69.1 %) of GhMYBs genes belong to the 2R-MYB subfamily in upland cotton. Conclusion: Our comparative genomics analysis has provided novel insights into the roles of MYB transcription factors in cotton fiber development. These results provide the basis for a greater understanding of MYB regulatory networks and to develop new approaches to improve cotton fiber development. © 2016 The Author(s).

Abdelseed B.H.,University of Khartoum | Abdalla A.H.,University of Khartoum | Yagoub A.E.-G.A.,University of Zalingei | Mohamed Ahmed I.A.,Tottori University | Babiker E.E.,University of Khartoum
Journal of Agricultural Science and Technology | Year: 2011

Total energy, protein content and digestibility, antinutritional factors, and total and extractable minerals of normal sorghum (Type II) and four newly developed lines of sorghum (Eri-1, SHK-ABA-4, SHK-ABA-6 and SHK-ABA-10.) were studied before and after fermentation. Phytic acid and Tanin contents of raw flour of the normal sorghum were, respectively, 41.73 mg 100 g-1 and 170.54 mg 100 g-1, while the same values for the four lines ranged from 16.07 to 38.64 mg 100 g-1 and from 31.90 to 184.25 mg 100 g-1, respectively. Polyphenols content of raw flour of the normal sorghum was 604.56 mg 100 g-1, exceeding the values found for the four lines in the range of 476.46 to 544.44 mg 100 g-1. According to our results, fermentation of normal sorghum flour and that of the new lines significantly (P≤ 0.05) decreased the antinutritional factors i.e. phytate, tannins, and polyphenols. The total energy of raw flour of the normal sorghum was 369.87 Kcal 100 g-1 while it ranged from 367.23 to 372.57 Kcal 100 g-1 for the new lines. In all cases, this energy slightly decreased after fermentation. Protein digestibility of normal sorghum was 22.60% and, for the new lines, it ranged from 37.00 to 57.19%. After fermentation, protein digestibility and the total and extractable Ca, P, and Fe increased significantly (P≤ 0.05) for all genotypes studied.

Eldoma I.M.,Lanzhou University | Eldoma I.M.,University of Zalingei | Li M.,Lanzhou University | Zhang F.,Lanzhou University | Li F.-M.,Lanzhou University
Field Crops Research | Year: 2016

Ridge-furrow with plastic film mulch is a key method now used by local farmers to overcome the challenges of cooling and low rainfall in a production of major food grains in the semi-arid Loess Plateau of China. Field experiments were conducted over two consecutive seasons, 2014 and 2015, to determine if alternating or equal ridge-furrow patterns would increase maize (Zea mays L.) growth and grain yield. The experiment comprised five treatments: (1) flat-bare plot (CK); (2) ridge-furrow with equal ridge widths of 55cm (RFE); (3) ridge-furrow with alternating wide (0.7m) and narrow (0.4m) ridges (RFA); (4) ridge-furrow with equal ridge widths and completely mulched by plastic (colorless and transparent polyethylene) film (RFME); and (5) ridge-furrow alternating wide and narrow ridges, completely mulched with the film (RFMA). Grain yields for RFE, RFA, RFME and RFMA were -23.3%, -18%, 185% and 177% in 2014, respectively, and -22.3%, -6.7%, 207% and 215% in 2015, respectively, less/more than CK. Correspondingly 100-seed weights of grain were -12.6%, -4.6%, 79% and 63% different than CK CK in 2014, and -6%, -1.2%, 78% and 86% in 2015. Corresponding total plant dry mass (DM) was 4.6%, -0.4%, 53.4% and 51.3% less/more than CK in 2015; and maximum leaf area index (LAI) differed from CK by -0.15, -0.15, 0.42 and 0.45m2 m-2 in 2015. The yield was highest for RFME in 2014 (6780kgha-1) and for RFMA treatment in 2015 (6250kgha-1). There were no significant differences in grain yield, 100-seed weight, DM and LAI among CK, RFE and RFA or between RFME and RFMA; however, there were significant differences between each of CK, RFE or RFA and either RFME or RFMA due to the effect of plastic mulch. This effect was associated with significant increases in both soil moisture and temperature: in the first half of the season in 2014, topsoil temperatures (at 10cm depth) of RFE, RFA, RFME and RFMA treatments were 0°C, 0°C, 1.7°C and 1.6°C higher compared with CK, respectively; and correspondingly in 2015, soil water storage (SWS) within 0-140cm depth was 1.3, 1.7, 9.2 and 7.2% higher. Without film mulch, the patterns of equal and alternate ridge widths had no significant effect on yield components, LAI, DM, SWS and soil temperature during both seasons. Nevertheless, the alternate pattern with film mulch is useful and necessary for labor to pass through crop rows during crop tending, as well as being a better method for maize production in this semi-arid rain-fed area. © 2016 Elsevier B.V.

Babiker I.A.,University of Zalingei | Shamat A.M.,Ministry of Science and Technology | Mukhtar A.M.S.,University of Khartoum | Ahmed F.A.,Ministry of Science and Technology
Journal of Camel Practice and Research | Year: 2014

Six camels of 279±16.14 kg live body weight and 3-6 years old were divided into 2 groups of 3 animals each, to study the feeding effect of Natron on general health and production through measuring the feed intake, some haemoglobin (Hb) indices and the body weight gain. Two diets supplemented and un-supplemented with Natron were used for the purpose of this experiment. The results showed that Natron's cation content has no significant (P>0.05) effect on the camel buffering system. Roughage intake was not improved within the 2 groups when fed the un-supplemented diets, but there was an improved roughage intake (P<0.05) in the 2 groups when fed the Natron supplemented diets. The live weight gain of the experimental camels was significantly (P<0.05) affected by Natron supplementation. The Hb level, white blood cells (WBC) and red blood cells (RBC) count were increased significantly along with the increase in roughage intake and live body weight gain.

Zhou C.,Jiangsu University | Ma H.,Jiangsu University | Ding Q.,Jiangsu University | Lin L.,Jiangsu University | And 5 more authors.
Food and Bioproducts Processing | Year: 2013

The impact of ultrasound pretreatment of corn gluten meal (CGM) protein and neutrase on the ACE (angiotensin converting enzyme) inhibitory activity of hydrolysate was studied. The UV-vis differential spectra and fluorescence spectra of the CGM protein and neutrase were determined. The neutrase activity and the ACE inhibitory activity of the CGM protein hydrolysates were analyzed. The highest ACE inhibitory activity was obtained at 10 min hydrolysis when the CGM protein was pretreated at 20 kHz for 10-30 min and at a power of 1000 W. The neutrase activity and ACE inhibitory activity were at their maxima at sonication of 250 W and sonication time of 15 min. The fluorescence and UV differential spectra of the proteins of CGM and neutrase reflected molecular unfolding due to sonication. Sonication of the protein substrate and the enzyme before hydrolysis may be an effective way to enhance the ACE inhibition attributes of the hydrolysate. © 2013 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.

Zhou C.,Jiangsu University | Zhou C.,Jiangsu Jiangda Five Pines Biotechnology Co. | Hu J.,Jiangsu University | Ma H.,Jiangsu University | And 5 more authors.
Food Chemistry | Year: 2015

Protamex catalyzed corn gluten meal (CGM) hydrolysis peptides (CHP) were prepared. Orthogonal design L16 (45) was used to optimize processing variables of CGM concentration, CGM heat pretreatment (121 °C) time, and enzymolysis pH, temperature, and time. Degree of hydrolysis (DH), undigested residue ratio, molecular weight (MW) distribution and DPPH radical inhibition were selected as analysis indicators. Optimum variables were CGM concentration of 18%, heat pretreatment time of 40 min, and enzymolysis pH, temperature and time of 7.5, 55 °C and 24 h, respectively. Verification test showed that CHP IC50 for scavenging hydroxyl radical was the best and then followed by reducing power. Oligopeptides improved after hydrolysis at the expense of di- and tripeptides, suggesting formation of soluble aggregates from low MW peptides. The increase in the DH, oligopeptides, Alanyl-Tyrosine, and antioxidant free amino acids coincided with the improvement in the antioxidant activity of CHP. © 2015 Elsevier Ltd. All rights reserved.

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