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Study of Wea. a.id Preserva.ives a.d Modified a.mosphere Pa.ka.ing (Ma.) on Mold Growth in Moda. a.a. System

Food a.d Nutrition Sciences 2012年第6期3卷 802-809页

作者： Sa.a. M. Ha.a. ramadan a. abdolgader Depa.tment of Food Science Faculty of Agriculture University of Omar Al-Mukhtar Al-Beida Libya.

Inhibition of spoila.e mold of common conta.ina.t of ba.ery goods in moda. a.a. system by pota.sium sorba.e a.d ca.cium propiona.e in wide ra.ge of concentra.ion (0 - 2000 ppm) a. different pH (5.5 - 7) wa. investiga.ed. a.l Sa.ples were exa.ined da.ly for mold growth. Results showed tha. both pota.sium sorba.e a.d ca.cium propiona.e ca. be used effectively to inhibit mold growth a.d the effectiveness of these preserva.ives is enha.ced by increa.ing the concentra.ion a.d decrea.ing the pH. The effect of modified a.mosphere pa.ka.ing (Ma.) comprised of 60% or 80% CO2 (ba.a.ce N2) a.d oxygen a.sorbents on the growth of mold wa. a.so studied on the a.a. system. The results indica.ed tha. mold growth wa. prevented up to 42 da.s in pa.ks flushed with 60% or 80% CO2 (ba.a.ce N2). It wa. a.so evident tha. a.l sa.ples did not show mold growth for >40 da.s when pa.ka.ed in the presence of oxygen sca.enger sa.het.

关键词： Mold Pota.sium Sorba.e Ca.cium Sorba.e Preserva.ives Ma.

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Qua.tita.ive Determina.ion of Cd a.d Pb in Tissues a.d Orga.s of Chickens Ra.sed in El-Ja.el a.a.hder Region—Libya

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Food a.d Nutrition Sciences 2013年第8期4卷 763-766页

作者： ramadan E. abdolgader ramadan a. Hussa.n Sa.a. M. Ha.a. a.oub a. a.oub Depa.tment of Food Science a.d Technology Faculty of Agriculture Omar Almukhater University Bayda Libya.

This study wa. ca.ried out to determine the concentra.ion of Cd, a.d Pb in the tissues of thigh, brea.t, liver, hea.t, gizza.d, neck a.d skin of chicken. a.l sa.ples were collected in the summer of 2004 from three different commercia. fa.ms of chickens production loca.ed in different a.ea. of EL-Ja.a. a.a.hder region a. Libya.country (Gerna.a. EL-a.ra. a.d Sousa.. For compa.ison, the meta.s were a.so determined in the sa.e tissues of the chickens which produced in the na.iona. sta.ion of poultry production a. EL-a.horia.city. The meta.s in the chickens feed a.d in wa.er for both drinking a.d clea.ing inside the sla.ghter house were a.so determined. The results revea.ed tha. the highest concentra.ions of Cd were found in neck, liver a.d hea.t while the neck a.d skin tissues conta.ned the highest level of Pb. However, the tissues of thigh a.d brea.t flesh ha. the lowest level of meta.s. The levels of Cd in the different tissues ra.ged from 0.008 to 0.227 ppm a.d from 0.093 to 2.391 ppm for Pb. The results revea.ed tha. the levels of Cd in neck from a.l fa.ms, liver from both EL-a.horia.a.d Gerna.a.fa.ms. Levels of Pb in the neck a.d skin from a.l fa.ms were exceeding the permitted limits a.cording to some Europea. regula.ions. The results a.so indica.e tha. the high concentra.ions of Cd in some tissues were due to the effect of high levels of these meta.s in the feed of birds. However the drinking a.d clea.ing wa.er ha. no effects on the level of the meta.s in the different tissues.

关键词： Chicken Hea.y Meta.s Lea. Ca.mium

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