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| 1 | Gas chromatography-mass spectrometry analysis of different organic crude extracts from the local medicinal plant of Thymus vulgaris L显示文摘Objective:To isolate and analyze the chemical composition in different crude extracts of from the leaves of locally grown of Thymus vulgaris L(T.vulgaris)by gas chromatography-mass spectrometry(GC-MS).Methods:The shade dried leaves powder was extracted with methanol by using Soxhlet extractor.Methanol crude extracts of T.vulgaris and the derived fractions of hexane,chloroform,ethyl acetate and butanol were obtained.Results:Qualitative analyses of various organic crude extracts of T.vulgaris by using GC-MS showed that there were different types of high and low molecular weight compounds.Most of the isolated and identified compounds by GC-MS in the crude extracts are basically biologically important.Further,the T.vulgaris leaf possessed certain characteristics that can be ascribed to cultivation on a domestic plantation.The crude extracts were prepared from the powder leaves of T.vulgaris for respective compounds can be chosen on the basis of above GC-MS analysis.Conclusions:All the major compounds were identified and characterized by spectroscopic method in different organic crude extracts of T.vulgaris are biologically active molecules.Thus the identification of a good number of compounds in various crude extracts of T.vulgaris might have some ecological role. | Laila Salim Al Hashmi Mohammad Amzad Hossain Afaf Mohammed Weli Qasim Al-Riyami Jamal Nasser Al-Sabahi | 2013 | Asian Pacific Journal of Tropical Biomedicine2013，3，1： | 4 |
| 2 | Chemical composition of essential oils and in vitro antioxidant activity of fresh and dry leaves crude extracts of medicinal plant of Lactuca Sativa L.native to sultanate of Oman显示文摘Objective:To isolate and analyse the chemical composition in the essential oils and free radical scavenging activity of different crude extracts from the fresh and dry leaves of vegetable plants of Lactuca sativa L.(L.sativa).Methods:The essential oils and volatile chemical constituents were isolated from the fresh and dry leaves of L.sativa(lettuce)grown in Sultanate of Oman by hydro distillation method.The antioxidant activity of the crude extracts was carried out by well established free radical scavenging activity(DPPH)method.Results:About 20 chemical compounds of different concentration representing 83.07%and 79.88%respectively were isolated and identified by gas chromatography-mass spectroscopy in the essential oils isolated from the fresh and dry leaves asα-pinene(5.11%and 4.05%).γ-cymene(2.07%and 1.92%),thymol(11.55%and 10.73%),durenol(52.00%and 49.79%),α-terpinene(1.66%and 1.34%),thymol acetate(0.99%and 0.67%),caryophyllene(2.11%and 1.98%),spathulenol(3.09%and 2.98%).camphene(4.11%and3.65%),limonene(1.28%and 1.11%)representing these major chemical compounds.However,some other minor chemical constituents were also isolated and identified from the essential oil of lettuce including p-pinene,α-terpinolene,linalool,4-terpineol,α-terpineol,o-methylthymol,L-alloaromadendrene and viridiflorene.Conclusions:The chemical consliluents in the essential oils from the locally grown lettuce were identified in the following classes or groups of chemical compounds such as monoterpenes,sesquiterpenes volatile organic compounds and their oxygenated hydrocarbons.Therefore,the essential oils and the crude extracts from Omani vegetable species of lettuce are active candidates which would be used as antioxidant,antifungal or antimicrobial agents in new drugs preparation for therapy of infectious diseases. | Rahma Said Salim Al Nomaani Mohammad Amzad Hossain Afaf Mohammed Weli Qasim Al-Riyami Jamal Nasser Al-Sabahi | 2013 | Asian Pacific Journal of Tropical Biomedicine2013，3，5： | 3 |
| 3 | Study of total phenol,flavonoids contents and phytochemical screening of various leaves crude extracts of locally grown Thymus vulgaris显示文摘Objective:To prepare various crude extracts using different polarities of solvent and to quantitatively evaluate their total phenol,flavonoids contents and phytochemical screening of Thymus vulgaris collected from Al Jabal Al Akhdar,Nizwa.Sultanate of Oman.Methods:The leave sample was extracted with methanol and evaporated.Then it was defatted with water and extracted with different polarities organic solvents with increasing polarities.The prepare hexane,chloroform,ethyl acetate,hutanol and methanol crude extracts were used for their evaluation of total phenol,flavonoids contents and phytochemical screening study.The established conventional metliods were used for quantitative determination of total phenol,flavonoids contents and phytochemical screening.Results:Phytochemical screening for various crude extracts were tested and shown positive result for flavonoids,saponins and steroids compounds.The result for total phenol content was the highest in hutanol and the lowest in methanol crude extract whereas the total flavonoids contents was the highest in methanol and the lowest hexane crude extract.Conclusions:The crude extracts from locally grown Thymus vulgaris showed high concentration of flavonoids and it could be used as antibiotics for different curable and uncurable diseases. | Mohammad Amzad Hossain Khulood Ahmed Salim AL-Raqmi Zawan Hamood AL-Mijizy Afaf Mohammed Weli Qasim Al-Riyami | 2013 | Asian Pacific Journal of Tropical Biomedicine2013，3，9： | 2 |
| 4 | Defect inspection technologies for additive manufacturing显示文摘Additive manufacturing(AM) technology is considered one of the most promising manufacturing technologies in the aerospace and defense industries. However, AM components are known to have various internal defects, such as powder agglomeration, balling, porosity,internal cracks and thermal/internal stress, which can significantly affect the quality, mechanical properties and safety of final parts. Therefore, defect inspection methods are important for reducing manufactured defects and improving the surface quality and mechanical properties of AM components. This paper describes defect inspection technologies and their applications in AM processes. The architecture of defects in AM processes is reviewed. Traditional defect detection technology and the surface defect detection methods based on deep learning are summarized, and future aspects are suggested. | Yao Chen Xing Peng Lingbao Kong Guangxi Dong Afaf Remani Richard Leach | 2021 | International Journal of Extreme Manufacturing2021，3，2： | 2 |
| 5 | Hepatoprotective effect of Lepidium sativum against carbontetrachloride-induced damage in rats显示文摘 | Afaf I Abuelgasim Nuha H S Mohammed A H | | 0，，： | 1 |
| 6 | Biochemical studieson the hepatoprotective effect of Curcuma longa on someglycolytic enzymes in mice显示文摘 | Afaf E A K Ahmed S A Aly S A | 2006 | Journal of Applied Science2006，6，1： | 1 |
| 7 | Sesame seed is a rich source of dietary lignans显示文摘 | Ali A Moazzami Afaf Kamal-Eldin | 2006 | JAOCS2006，83，8： | 1 |
| 8 | Characterisation of aldehydicacids in used and unused fryir^ oils显示文摘 | AFAF KATNAL ELDIN’ GLORIA MARQUEZ-RUIZ CARMEN DOBARGANES | 1997 | Journal of ChromatographyA1997，776，3： | 1 |
| 9 | FE simulation of hydrogen diffusion in duplex stainless steel 显示文摘 | Vigdis Olden Afaf Saai Lise Jemblie | 2013 | International Journal of Hydrogen Energy2013，39，2： | 1 |
| 10 | A study on the influence of fucosterd on thermal polymerisation of purified high oleic sunflower triacylglycerols显示文摘 | Lampi Anna-Maija Afaf Kamal-Eldin Afaf Kamal-Eldin | 1999 | Journal of the Science of Food and Agriculture1999，，79： | 1 |
| 11 | A comparative study of spliced optical fibers显示文摘 | GHANDOOR H El NASSER I AFAF Abdd-had | 2002 | Optics & Lasers in Engineering2002，41，2： | 1 |
| 12 | Laparoscopic treatmant of polycystic overies with insulated needle cautery: a reappraisal 显示文摘 | Afaf F Seang LT Togas T | 2000 | Fertil Steril2000，73，2： | 1 |
| 13 | Functional properties of peptides obtained from whey proteins by ficin extract hydrolysis显示文摘Enzymatic whey proteins concentrates (WPC) hydrolysis under optimal conditions of ficin crude extract (FCE) in two ratios E/S (0.5 and 1%) was studied,assessing the impact of hydrolysis on WPC by determination degree of hydrolysis (DH),Fast proteins liquid chromatography (FPLC),Tricine SDS-PAGE,antioxidant activity at sampling time beside,and technological properties (solubility,emulsifying activity index (EAI) and foaming activity (FA)) at the best condition (maximum DH and antioxidant activity) other side.Results showed,in the first 30 min,DH reached 22.76% at E/S (1%) with a total degradation of α-lactalbumin (α-La) and almost of β-lactoglobulin (β-Lg).A significant increase in antioxidant activity and solubility was observed,while not for EAI,and FA.These results indicate for the first time that β-Lg is susceptible to hydrolyse by FCE that rarely found for other enzymes.Ficin hydrolysates showed very relevant performance,and suggest that could be appropriate production of functional ingredients. | Afaf Kheroufi María E.Brassesco Débora A.Campos Halima Boughellout Manuela E.Pintado | 2022 | Food Bioscience2022，47，3： | 1 |
| 14 | Gas chromatographic analysis of alksylresorcinols in rye(Secale cereale L) grains显示文摘 | Alastair B Ross Afaf Kamal-Eldin Charlotta Jung | | 0，，81： | 1 |
| 15 | Evaluation of antioxidant and antimicrobial potential of different leaves crude extracts of Omani Ficus carica against food borne pathogenic bacteria显示文摘 | Afaf Mohammed Weli Afaf Ali Mohammed Al-Blushi Mohammad Amzad Hossain | 2015 | Asian Pacific Journal of Tropical Disease2015，，1： | 1 |
| 16 | The chemistry and antioxidant properties of tocopherols and tocotrienols显示文摘 | Afaf Kamal-Eldin Lars-?ke Appelqvist | 1996 | Lipids1996，，7： | 1 |
| 17 | Hepatobiliary manifestations in children with inflammatory bowel disease:A single-center experience in a low/middle income country显示文摘BACKGROUNDThere has been a worldwide increase in the reported incidence of inflammatorybowel disease (IBD) in children over the past 2-3 decades. The hepatobiliary (HB)manifestations of IBD have been well-studied in children in industrialized anddeveloped countries but are infrequently reported in low- and middle-incomecountries (LMIC) such as Egypt.AIMTo determine the prevalence of the HB manifestations in a cohort of Egyptianchildren with IBD.METHODSThis cross-sectional observational study was carried out over a period of 6 mo(between June 2013 to December 2013, at the Paediatric Hepatology andGastroenterology Units of Cairo University Children's Hospital, which is thelargest paediatric tertiary care centre in the country.RESULTSThe study included 48 patients with confirmed IBD based upon clinical,laboratory, endoscopic and histopathological features, 29 (60.4%) were male.Twenty-four patients (50%) had ulcerative colitis (UC), 11 (22.9%) had Crohn'sdisease (CD) and 13 (27.1%) had unclassified-IBD (IBD-U), which was formerlyknown as indeterminate colitis. The mean age of the patients at the time ofpresentation was 8.14 (± SD 4.02) years and the mean age at the time of studyenrolment was 10.16 (± SD 4.19) years. All patients were screened for HBmanifestations by physical examination, liver function tests, imaging and liver biopsy when indicated. HB disorders were confirmed in 13 patients (27.1%).Transaminases were elevated in 3 patients (6.3%). Two patients (4.2%) hadelevated biliary enzymes (one was diagnosed as primary sclerosing cholangitis(PSC) and the other was diagnosed with PSC/autoimmune hepatitis overlapsyndrome and the third patient had hepatitis C virus infection. Ten patients(20.8%) had bright echogenic liver on ultrasound suggesting fatty infiltration as asequel of malnutrition or medication toxicity.CONCLUSIONThe commonest HB disorders in Egyptian children with IBD were abnormal liverfunction tests, fatty infiltration and PSC. These HB manifestations in paediatricpatients in LMIC may be relatively more common than in industrializedcountries. Therefore, IBD patients in LMIC should be meticulously screened forliver disease to allow prompt diagnosis and management. | Mortada HF El-Shabrawi Sara Tarek Maha Abou-Zekri Safa Meshaal Afaf Enayet Engy Adel Mogahed | 2020 | World Journal of Gastrointestinal Pharmacology and Therapeutics2020，11，3： | 1 |
| 18 | Oxidative Stress, Prooxidants, and Antioxidants: The Interplay显示文摘 | Anu Rahal Amit Kumar Vivek Singh Brijesh Yadav Ruchi Tiwari Sandip Chakraborty Kuldeep Dhama Afaf K. El-Ansary | 2014 | BioMed Research International2014，，： | 1 |
| 19 | Laparoscopic treatment of polycystic ova - ries with insulated needle cautery: a reappraisal 显示文摘 | Afaf F Seang LT Togas T | 2000 | Fertility And Sterility2000，73，： | 1 |
| 20 | Sesame Seed Is a Rich Source of Dietary Lignans 显示文摘 | Ali A Moazzami Afaf Kamal - Eldin | 2006 | JAOCS2006，83，8： | 1 |
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