Results 61 to 70 of about 4,304 (184)

Scientific opinion on the exposure of the adult population of the Republic of Croatia to dioxins and dioxin‐like polychlorinated biphenyls from different types of food.

open access: yesFood Risk Assess Europe, Volume 2, Issue 4, October 2024.
Summary Dioxins (PCDD/F) and dioxin‐like polychlorinated biphenyls (DL‐PCB) are harmful compounds that remain in the environment and accumulate in the food chain. Polychlorinated dibenzo‐p‐dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) are mainly by‐products of industrial processes, but can also be the result of natural processes such as ...
Andrea Gross–Bošković   +5 more
wiley   +1 more source

Níveis de fósforo disponível e cálcio em rações suplementadas com fitase para frangos de corte nas fases de crescimento e final Calcium and available phosphorus levels in diets supplemented with phytase for broilers in the growing and finishing phases

open access: yesRevista Brasileira de Zootecnia, 2011
Avaliaram-se os níveis de cálcio e fósforo disponível (Pdisp) em rações com fitase para frangos de corte da linhagem Cobb nas fases de crescimento (22 a 35 dias) e final (36 a 42 dias).
Luziane Moreira dos Santos   +7 more
doaj   +1 more source

Scientific opinion on marine biotoxins in shellfish in the Republic of Croatia

open access: yesFood Risk Assess Europe, Volume 2, Issue 2, April 2024.
Summary Marine biotoxins are thermostable, mostly non‐protein molecules with different chemical components. According to solubility, they are divided into water‐soluble (hydrophilic) and fat‐soluble (lipophilic). The regulations of the EU and the Republic of Croatia regarding the maximum limits (ML) in live shellfish cover several groups: azaspiracids (
Brigita Hengl   +7 more
wiley   +1 more source

Desarrollo de biocatalizadores hidrofóbicos y termotolerantes mediante técnicas de evolución dirigida

open access: yesRevista Colombiana de Biotecnología, 2002
La evolución dirigida se presenta hoy como una de las alternativas más efectivas en el desarrollo y adaptación de biocatalizadores a los requerimientos industriales.
Julia Raquel Acero R.   +1 more
doaj  

Ractopamina e fitase em dietas para suínos na fase de terminação Ractopamine and phytase in diets for finishing pigs

open access: yesRevista Brasileira de Zootecnia, 2009
O objetivo neste estudo foi avaliar os efeitos da ractopamina e da enzima fitase sobre o desempenho e as características de carcaça de suínos na fase de terminação.
Anderson Corassa   +2 more
doaj   +1 more source

Scientific opinion on the exposure of the adult population of the Republic of Croatia to lead from different types of food

open access: yesFood Risk Assess Europe, Volume 2, Issue 1, January 2024.
Summary Lead is a ubiquitous environmental contaminant that occurs naturally and, to a greater extent, from anthropogenic activities. People are exposed to lead through food, water, air, soil and dust. Food is the major source of exposure for the adult population.
Vlatka Buzjak Služek   +4 more
wiley   +1 more source

Redução de proteína e fósforo em rações com fitase para frangos de corte no período de 1 a 21 dias de idade: desempenho e teores de minerais na cama Decreasing dietary levels of protein and phosphorum supplemented with phytase for broilers from 1 to 21 old: performance and mineral levels in the litter

open access: yesRevista Brasileira de Zootecnia, 2006
O experimento foi realizado para avaliar o desempenho e o teor de minerais na cama de frangos no período de 1 a 21 dias de idade, alimentados com rações contendo níveis reduzidos de proteína bruta (PB) e fósforo disponível (Pd) suplementadas com ...
Yolanda Lopes da Silva   +6 more
doaj   +1 more source

Scientific opinion on the exposure of the adult population of the Republic of Croatia to ochratoxin A (OTA) from different types of food

open access: yesFood Risk Assess Europe, Volume 2, Issue 1, January 2024.
Summary Ochratoxin A (OTA) is the most toxic representative in the group of nephrotoxic mycotoxins, ochratoxins. OTA was first isolated in 1965 as a stable secondary metabolite of A. ochraceus. Penicillia and aspergilli most often synthesize OTA on cereals (wheat, corn, barley, rye, rice), nuts, raw fruits and vegetables, plant origin foods (wine ...
Sanja Miloš   +5 more
wiley   +1 more source

Utilização de dietas úmidas e de rações e água de bebida com edulcorante para leitões desmamados aos 21 dias de idade e efeitos sobre o desenvolvimento histológico e enzimático intestinal

open access: yesRevista Brasileira de Zootecnia, 2001
Um experimento foi realizado com leitões desmamados visando avaliar os efeitos de oito tratamentos, correspondentes à combinação dos fatores, apresentações de ração (seca e úmida), tipos de ração (sem e com edulcorante) e tipos de água de consumo (sem e ...
Silva Caio Abércio da   +5 more
doaj  

A enzima delta-aminolevullnato desidratase [PDF]

open access: yesCiência e Natura, 1997
Delta-aminolevulinic acid dehydratase (ALA-D, EC 4.2.1.24) is a sulfhydryl-containing enzyme that asymetrically condenses two molecules of delta-aminolevulinic acid (ALA), catalyzing the formation of porphobilinogen, the monopyrrole precursor of ali biological tetrapyrroles (corrins, porphyrins, chlorins).
openaire   +1 more source

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