Mansoura University, Faculty of Agriculture
Journal of Soil Sciences and Agricultural Engineering
2090-3685
2090-3766
33
2
2008
02
01
EFFECT OF COMPOST, (AM) MYCORRHIZAE AND N2-FIXING BACTERIA ON GROWTH AND YIELD OF WHEAT
1269
1280
EN
M. M.
Abd El-Monium
Soils, Water and Environ. Res. Inst., Agric. Res. Center (ARC), Giza, Egypt
O. N M.
Massoud
Soils, Water and Environ. Res. Inst., Agric. Res. Center (ARC), Giza, Egypt
10.21608/jssae.2008.166874
A field experiment was carried out in sandy soil at El-Ismailia Agricultural Research Station, El-Ismailia Governorate, Agricultural Research Center (ARC) to study the effect of treating the soil with different types of compost (plant residues with organic manure and plant residues with cellulose decomposers), (AM)-mycorrhizae and N<sub>2</sub>-fixing bacteria on the growth and yield of wheat plants. Plant dry weight recorded a significant increase when the soil was treated with compost provided with cellulose decomposers and biofertilizers. The highest number of tillers obtained with compost B amended with organic manure and biofertilizers.<br /> The maximum infection percentage was due to compost A provided with organic manure. The optimum nitrogenase enzyme activity obtained when the soil was treated with compost B plus cellulose decomposers and biofertilization. High significant nitrogen percentage was shown when the soil was amended with compost D + organic manure + biofertilizers. inoculation with N<sub>2</sub>-fixers + (AM) mycorrhizae led to the increase of phosphorus % and this was clearly obtained with compost "B" plus cellulose decomposers. inoculation with mixed diazotrophs + (AM)-mycorrhizae increased potassium % and this was obtained with compost D plus organic manure at the period of 45 days from sowing.<br /> Results showed significant increases in yield parameters, i.e., 1000-grain weight, grain yield and straw yield. The addition of compost B amended with organic manure + N<sub>2</sub>-fixers + (AM) mycorrhizal gave the superior yield. Generally, it was remarkable that the essential role of organic matter represented in compost, N<sub>2</sub>-fixers and (AM) mycorrhizae in enhancing the growth and yield of wheat.
Wheat,Azospirillum lipoferum,Azotobacter chrococcoum,Bacillus polymyxa,Klebsiellapnumoniae,AM-mycorrhizae
https://jssae.journals.ekb.eg/article_166874.html
https://jssae.journals.ekb.eg/article_166874_7884acd8c7657a721639ce41fe8b21f3.pdf
Mansoura University, Faculty of Agriculture
Journal of Soil Sciences and Agricultural Engineering
2090-3685
2090-3766
33
2
2008
02
01
EVALUATION OF ANTIMICROBIAL AND ANTIOXIDANT POTENTIAL OF TEA AND CAROB EXTRACTS IN BUFFALO BUTTER
1647
1662
EN
Fatma
A. M.
Ramadan
Dairy Science and Technology., Fac. of Agric. Cairo Univ, Egypt.
Zeinab
I.
Sadek
Dairy Dept. National Research Center Dokki, Giza, Egypt.
I.H.I.
Abd El-Ghany
Dairy Science and Technology., Fac. of Agric. Cairo Univ, Egypt.
10.21608/jssae.2008.166878
The present study was carried out to evaluate the antimicrobial and antioxidant effects of black tea extract (BTE), green tea extract (GTE) and carob extract (CRE) in buffalo butter during storage at 4±1ºC for 12 weeks and compare to synthetic phenolic compound butylated hydroxytoluene, (BHT). The antibacterial effect and minimal inhibitory concentration (MIC) of extract against <em>Listeria monocytogenes</em> were studied. The effectiveness of these extracts (0.025 – 0.05%) in butter made from pasteurized cream were evaluated by incubating (10<sup>5</sup> cfu/g) of <em>Listeria monocytogenes. </em>The GTE had completely inhibited (P≤0.05) the viability growth of <em>Listeria monocytogenes </em> during storage at 4±1ºC (10 – 12 weeks) . During storage of butter made from unpasteurized cream, the population of lipolytic bacteria and mould&yeast markedly reduced (P≤0.05) by addition GTE (0.025 – 0.05%) compared to other treatments. Also, BHT (0.025%) and GTE had similar inhibitory effect on <em>Staph. aureus. E. coli</em> and total counts. The BTE and GTE had a most antioxidant effect on decreasing the acid value (AV), peroxide value (PV) and thiobarbituric acid value (TBA). While CRE had less effect. Organoleptically, butter with added BTE, GTE and CRE gained the highest acceptance until 8 weeks compared with BHT treatment and control sample. This research has demonstrated that the use of BTE and GTE as a natural antimicrobial and antioxidant is a promising means to provide additional safety and improve the quality of buffalo butter during storage.
Antimicrobial,antioxidant,green tea,Black tea,carob extracts,buffalo butter
https://jssae.journals.ekb.eg/article_166878.html
https://jssae.journals.ekb.eg/article_166878_caa53785121871cfccc4072d0cc0fb0d.pdf