Changes in fatty acid composition of coriander (Coriandrum sativum L.) fruit during maturation     

Kamel Msaada  Karim Hosni  Mouna Ben Taarit  Thouraya Chahed  Mohamed Hammami  Brahim Marzouk 《Industrial Crops and Products》2009,29(2-3):269-274

Changes in fatty acids were studied during maturation of coriander (Coriandrum sativum L.) fruits cultivated in the North-East of Tunisia (Charfine). The fruits matured in 55 days after flowering (DAF). Oil and petroselinic acid synthesis proceeded at a steady rate up to 32 DAF. The first results showed a rapid oil accumulation started at newly formed fruits (9.6 ± 0.2%) and continued until their full maturity (26.4 ± 0.5%). During fruit maturation, fatty acid profiles varied significantly among the nine stages of maturity. At the 32th DAF, palmitoleic, gadoleic, erucic and docosahexenoic acids were not detected and petroselinic acid had a highest amount (84.8 ± 4.5%). Fruits development resulted mainly in an increase of petroselinic acid and a decrease of palmitic acid (C16:0). At full maturity, the main fatty acids were petroselinic acid (80.9 ± 5.7%), followed by linoleic (13.6 ± 2.9%), palmitic (3.6 ± 0.1%) and stearic (0.7 ± 0.1%) acids. Saturated and polyunsaturated fatty acids decreased significantly and monounsaturated fatty acids increased during maturation of coriander fruit. Coriander fruits at the first four stages of maturity have a healthy nutritional value and the last five stages were with important economic and industrial applications. Results of this study indicate that the variation in the fatty acid composition of coriander fruit during maturation may be useful in understanding the source of nutritionally and industrially important fatty acids in this fruit. Coriander fruit is potentially an important source of petroselinic acid which has numerous industrial applications.  相似文献   

The prevalence of brucellosis among sheep and goats in northern Iraq     

M. A. Karim  E. K. Penjouian  F. I. Dessouky 《Tropical animal health and production》1979,11(1):186-188

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NaCl胁迫对扁桃砧木叶片显微结构的影响   总被引：9，自引：1，他引：8  

侯江涛  克热木·伊力  迪利夏提  买合木提 《中国农学通报》2005,21(7):258-258

采用新疆常用的扁桃砧木石头扁桃和桃扁桃的1年生实生苗为材料,研究了不同浓度NaCl对其叶片显微结构的影响。结果表明：（1）两个砧木在75mmol/LNaCl处理10d和20d后叶片结构没有明显变化。（2）石头扁桃在150mmol/LNaCl处理10d后表现出叶肉极显著加厚;栅栏组织细胞和海绵组织细胞显著变长,同时栅栏组织细胞数目增多排列比较紧密。随着盐浓度的增加和胁迫时间的延长也发生了类似的变化,但是栅栏组织细胞和海面组织细胞形状变的很不规则。（3）桃扁桃在300mmol/LNaCl处理10d后才表现出明显反应,栅栏组织细胞和海绵组织细胞变长,栅栏细胞排列紧密且发达。300mmol/LNaCl处理20d后出现类似的变化,但不显著。不同盐浓度间叶肉厚度变化不显著。综合比较发现石头扁桃对NaCl比较敏感,同样时间的NaCl胁迫后,石头扁桃的叶片在150mmol/LNaCl胁迫下变化极显著,而桃扁桃在300mmol/LNaCl胁迫后变化明显;整个处理过程中桃扁桃的叶片结构变化幅度不及石头扁桃。  相似文献   

Honey with high levels of antioxidants can provide protection to healthy human subjects   总被引：2，自引：0，他引：2  

Schramm DD  Karim M  Schrader HR  Holt RR  Cardetti M  Keen CL 《Journal of agricultural and food chemistry》2003,51(6):1732-1735

Free radicals and reactive oxygen species (ROS) have been implicated in contributing to the processes of aging and disease. Humans protect themselves from these damaging compounds, in part, by absorbing antioxidants from high-antioxidant foods. This report describes the effects of consuming 1.5 g/kg body weight of corn syrup or buckwheat honey on the antioxidant and reducing capacities of plasma in healthy human adults. The corn syrup treatment contained 0.21 +/- 0.06 mg of phenolic antioxidants per gram, and the two buckwheat honey treatments contained 0.79 +/- 0.02 and 1.71 +/- 0.21 mg of phenolic antioxidants per gram. Following consumption of the two honey treatments, plasma total-phenolic content increased (P < 0.05) as did plasma antioxidant and reducing capacities (P < 0.05). These data support the concept that phenolic antioxidants from processed honey are bioavailable, and that they increase antioxidant activity of plasma. It can be speculated that these compounds may augment defenses against oxidative stress and that they might be able to protect humans from oxidative stress. Given that the average sweetener intake by humans is estimated to be in excess of 70 kg per year, the substitution of honey in some foods for traditional sweeteners could result in an enhanced antioxidant defense system in healthy adults.  相似文献   

Emulsifying and foaming properties of ultraviolet-irradiated egg white protein and sodium caseinate     

Kuan YH  Bhat R  Karim AA 《Journal of agricultural and food chemistry》2011,59(8):4111-4118

The physicochemical and functional properties of ultraviolet (UV)-treated egg white protein (EW) and sodium caseinate (SC) were investigated. UV irradiation of the proteins was carried out for 30, 60, 90, and 120 min. However, the SC samples were subjected to extended UV irradiation for 4 and 6 h as no difference was found on the initial UV exposure time. Formol titration, SDS-PAGE, and FTIR analyses indicated that UV irradiation could induce cross-linking on proteins and led to improved emulsifying and foaming properties (P < 0.05). These results indicated that the UV-irradiated EW and SC could be used as novel emulsifier and foaming agents in broad food systems for stabilizing and foaming purposes.  相似文献   

The isolation of lumpy skin disease virus and bovine herpesvirus-4 from cattle in Egypt   总被引：1，自引：0，他引：1  

J A House  T M Wilson  S el Nakashly  I A Karim  I Ismail  N el Danaf  A M Moussa  N N Ayoub 《Journal of veterinary diagnostic investigation》1990,2(2):111-115

Lumpy skin disease (LSD) virus (LSDV) was isolated for the first time from cattle in Egypt in 2 disease outbreaks. Bovine herpesvirus-4 (BHV-4) and LSDV were detected in a pooled sample from the first outbreak (Suez). Only LSDV was isolated from the second outbreak (Ismalia). The capripoxviruses were identified as LSDV by neutralization with specific antiserum and by their ability to produce generalized LSD in experimentally inoculated cattle.  相似文献   

Durum wheat (Triticum durum Desf.) Mediterranean landraces as sources of variability for allelic combinations at Glu-1/Glu-3 loci affecting gluten strength and pasta cooking quality     

Ruyman Nazco  Roberto Javier Peña  Karim Ammar  Dolors Villegas  José Crossa  Conxita Royo 《Genetic Resources and Crop Evolution》2014,61(6):1219-1236

With the aim of identifying durum wheat landraces (LR) with a potential use in breeding programs for gluten strength enhancement, the allelic combinations present at five glutenin loci were determined in a collection of 155 LR from 21 Mediterranean countries. A set of 18 modern cultivars (MC) was used for comparison. Gluten strength was determined by SDS-sedimentation test on grain samples from field experiments conducted during 3 years. A total number of 131 different allelic/banding pattern combinations were found. Taking together high (HMW-) and low (LMW-) molecular weight glutenin subunit loci resulted in 126 combinations in LR, but only nine in MC, which are characterized for having strong gluten. Two LMW-2 type models were identified in the collection and LMW-1 types were absent. LMW-2 was present in 78 % of MC, including the only three with outstanding gluten strength (Ocotillo, Claudio and Meridiano), while 14 % of the LR had LMW-2 and 6 % LMW-2^?. In the LR a known combination LMW-2 (aaa) and three new ones had a positive effect on the gluten strength. LMW-2 models were found in high frequency in LR from Italy and the three Maghreb countries; from medium to low frequencies in genotypes from Turkey, Jordan, Lebanon, Portugal and Spain, and were absent in the remaining countries. The large variability found in LR proved their potential value in breeding to broaden the genetic basis of gluten quality improvement. Genotypes interesting for breeding purposes are identified.  相似文献   

New genes for resistance to green leafhopper, Nephotettix virescens (distant) in rice, Oryza sativa L.     

A.N.M. Rezaul Karim  M.D. Pathak 《Crop Protection》1982,1(4):483-490

The inheritance of resistance to the green leafhopper, Nephotettix virescens (Distant) (Homoptera: Cicadellidae), in 12 cultivars of rice (Oryza sativa L.) was studied at Joydebpur, Bangladesh. The resistance of Kosatawee is governed by a single recessive gene. The remaining 11 varieties possess single dominant genes for resistance, which are different from the genes Glh 1, Glh 2, Glh 3 and Glh 5. The single dominant genes conveying resistance in TAPL 796, Ptb 18 and IR36 are allelic to each other but are non-allelic to the dominant resistance gene of Maddai Karuppan. The resistance genes in TAPL 796 and Maddai Karuppan were designated Glh 6 and Glh 7 respectively. The dominant resistance gene in Sulai is independent of Glh 6, but its allelic relationship to Glh 7 is not known. The allelic relationships of the dominant genes for resistance of Sulai, TAPL 628, TAPL 651, Leu-Wei-Theu, Bir-co-se-mao-17, Gu-win-gu-gi-goo, and Dikwee to Glh 6 and Glh 7 need to be investigated.  相似文献   

Management strategy,uptake and translocation of nitrogen in tidal flooded rice ecosystem     

Md. Abdullah Al Mamun  M. Moynul Haque  M. Abu Saleque  Qazi Abdul Khaliq  A. J. M. Sirajul Karim  Md. Arifur Rahman Khan 《Journal of plant nutrition》2020,43(14):2186-2199

Abstract

Enhancing rice yield is a great challenge for rice growers in the tidal flooded ecosystem, where poor agronomic management is one of the major constrains. Improve management practice (IMP) was compared with traditional farmers’ practice (TFP) in evaluating rice productivity, nutrient uptake, translocation and farm income in tidal flooded ecosystem. Results revealed that, IMP significantly produced higher number of panicles m^?2, more grain panicle^?1 and better grain filling. The rice cultivars produced 2.0 to 2.5 t grain ha^?1 with TFP, while 3.0 to 4.0 t ha^?1 with IMP. In different rice cultivars, the grain yield in IMP increased 12 to 60% over TFP. Similarly, the grains in IMP treatment absorbed 21.41 to 57.03?kg N ha^?1 whereas only 15.85 to 46.94?kg N ha^?1 in TFP plot. However, higher nitrogen (N) transfer from shoot to grain in IMP also suggests that the amount of N in soil was too low to meet the plant demand in TFP. Although, the IMP involved additional cost, but it gave significantly higher gross return (438 to 954?US$ha^?1) and margin (397 to 913?US$ha^?1) which added farm income upto 225?US$ha^?1 over TFP. Hence, it could be concluded that IMP is a potential option for increasing grain yield and farm income during aman season in the tidal flooded ecosystem.  相似文献   

INTEGRATED NUTRIENT MANAGEMENT FOR CABBAGE-BRINJAL-RED AMARANTH CROPPING PATTERN IN HOMESTEAD AREA     

M. M. Islam  A. J. M. S. Karim  M. Jahiruddin  Nik M. Majid  M. G. Miah  M. S. Islam 《Journal of plant nutrition》2013,36(11):1678-1694

An experiment was conducted to study the effect of organic manure and chemical fertilizers on soil properties and vegetable crops in the cabbage-brinjal-red amaranth cropping pattern at the homestead in a Grey Terrace Soil (Aric Albaquept) of Bangladesh. There were eight treatments: poultry manure (PM) at 5 t ha^?1, cowdung (CD) at 10 t ha^?1, household waste (HW) at 10 t ha^?1, PM at 2.5 t ha^?1 + chemical fertilizers (CF), CD at 5 t ha^?1 + CF, HW at 5 t ha^?1 + CF, CF, and Control. The lone CF treatment indicates 100% chemical fertilizers and any manure + CF indicates supplementary or reduced rate of fertilizers. The PM at 2.5 t ha^?1 + CF treatment performed the best yield for cabbage and brinjal, and HW at 5 t ha^?1 + CF yielded the highest for red amaranth. The highest uptake of nitrogen, phosphorus, potassium, and sulfur was also found in the treatment that produced the highest yield. Bulk density, organic carbon, and nutrient availability in soil as determined after two-crop cycles were improved due to the applications of manure.  相似文献