Avaliação de parâmetros da biodigestão anaeróbia de dejetos de suínos alimentados com dietas à base de milho e sorgo

Júnior, Marco A. P. Orrico; Orrico, Ana Carolina Amorim; Lucas, Jorge de

doi:10.1590/s0100-69162010000400004

Cited by 15 publications

(12 citation statements)

References 8 publications

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“…The similarities in the results for coliform reductions can be related to the shorter time interval among HRT employed in the current research when compared with the results shown by Orrico Junior et al (2010), who adopted an interval of 30 days, and another study of Orrico et al (2009) in which there was no difference among HRT with an interval of 7 days during digestion process of swine manure with and without separation of solid fraction in semi-continuous digesters operated at 15, 22, 29, and 36 days.…”

Section: Resultssupporting

confidence: 72%

“…Orrico Junior et al (2010) reported different results when evaluating the treatment of manure from swine fed corn and sorghum, in semi-continuous digesters at four HTR (30, 60, 90, and 120 days). The authors observed differences with regard to retention times (HRT) and obtained the best reductions in MPN of total and thermotolerant coliforms in substrates that remained for longer periods under digestion.…”

Section: Resultsmentioning

confidence: 99%

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Co-digestion of swine excreta associated with increasing levels of crude glycerin

et al. 2016

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-The objective of this research was to evaluate the performance of anaerobic co-digestion of swine excreta associated with increasing doses of crude glycerin and different hydraulic retention times (HRT). A completely randomized design was adopted in a 3 × 4 factorial arrangement composed of three HRT (10, 17, and 24 days) and four crude glycerin doses (0, 5, 10, and 15 g/100 g of total solids [TS]), with four replications per treatment. The assessed parameters were: biogas production potential, reductions of volatile solids (VS), chemical oxygen demand (COD), and most probable number of total and thermotolerant coliforms. The biogas production per added VS presented quadratic effect at 17 and 24 days of HRT, with ideal doses of 5.5 and 5.9 g of crude glycerin/100 g TS, respectively. There was no difference among glycerin doses at 10-day HRT for VS reductions; however, at HRT of 17 and 24 days, there were differences, with greater reduction of 61.1% for 5 g of crude glycerin/100 g TS at 24-day HRT. The COD reduction values showed an effect among retention times, in which the 24-day HRT provided the best results. Reductions in coliforms were greater than 99%, with no difference among treatments. Addition of 5 to 6 g of crude glycerin/100 g TS with a 24-day HRT is more effective in biogas production and reduction of VS, COD, and coliforms from co-digestion of swine excreta.

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Section: Resultssupporting

confidence: 72%

Section: Resultsmentioning

confidence: 99%

Co-digestion of swine excreta associated with increasing levels of crude glycerin

et al. 2016

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“…This increase in consumption due to lower product price and technological gains (UBA, 2009), generates a large amount of underutilized housing components. The waste and effluents from the production chain of meat and products of poultry, cattle and swine production have high polluting power and if arranged in inadequate methods, generate serious environmental problems that lead to degradation of soil, surface and ground water environments, and health problems and death of living beings, by the presence of pathogenic microorganisms and animals and poisonous insects (ABREU NETO & OLIVEIRA, 2009;SILVA & ROSTON, 2010;OLIVEIRA 2009a and2009b;MATOS et al, 2010;ORRICO JUNIOR et al, 2010a). …”

Section: Introductionmentioning

confidence: 99%

“…Recent researches mention the reuse of poultry litter and carcass composting for obtaining humus (ORRICO JUNIOR et al, 2010b). In general, biodigesters are used to degrade wastewater from swine (ORRICO JUNIOR et al, 2010a) or cattle raising (XAVIER &LUCAS JUNIOR, 2010), which can be used to generate methane gas to be used as fuel and mud that can be used as organic fertilizer (humus).…”

Section: Introductionmentioning

confidence: 99%

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Production of a product similar to gelatin from chicken feet collagen

2013

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Chicken feet can be used as an alternative source of collagen for the development of new products. In this sense, the aim of this study was the production of a product similar to gelatin from collagen extracted from chicken feet and the evaluation of sensory quality. The products were produced in two distinct flavors, with grape flavor called GU and pineapple flavor called GA. Subsequently, we compared these formulations with gelatin of a trademark established in the market. We used in the verification of sensory acceptability of products a hedonic scale of 9 points and the availability of consuming the product by 30 untrained tasters. According to the results, all formulations showed good levels of acceptability, indicating the collagen from chicken feet as an alternative source of high quality in the production of gelatin.KEYWORDS: chicken feet; quality; sensory analysis, utilization of byproduct; new product development. PRODUÇÃO DE UM PRODUTO SIMILAR A GELATINA A PARTIR DE COLÁGENO DE FRANGORESUMO: Os pés de frango podem ser aproveitados como fonte alternativa de colágeno no desenvolvimento de novos produtos. Neste sentido, objetivou-se com o presente estudo a produção de um produto similar a gelatina a partir de colágeno extraído de pés de frango e a avaliação da qualidade sensorial. Os produtos foram elaborados com dois sabores distintos, sendo uva denominada GU e sabor abacaxi denominada GA. Posteriormente, compararam-se as formulações com uma gelatina de marca comercial consolidada no mercado. Utilizou-se, na verificação da aceitação sensorial, dos produtos escala hedônica de 9 pontos e a disponibilidade em se consumir o produto mediante 30 provadores não treinados. De acordo com os resultados, todas as formulações obtiveram bons níveis de aceitabilidade, indicando o colágeno dos pés de frango como fonte alternativa de elevada qualidade na produção de gelatinas.PALAVRAS-CHAVE: pés de frango; qualidade; análises sensoriais; aproveitamento de subproduto; desenvolvimento de novo produto.

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Quantification, characterization, and anaerobic digestion of sheep manure: The influence of diet and addition of crude glycerin

Orrico

2015

Env Prog and Sustain Energy

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The objective of this study was to evaluate the influence of roughage-to-concentrate ratio on quantification and characterization of sheep manure, and to verify whether the addition of crude glycerin improves the efficiency of the anaerobic digestion process. The characterization study was carried out with two treatments (diet 1 with 40% roughage and 60% concentrate and diet 2 with 60% roughage and 40% concentrate) and 12 replicates per treatment. Parameters evaluated were as follows: production of manure, total solids (TS), volatile solids (VS), most probable number (MPN) of total (TC) and thermotolerant coliforms (TTC), chemical oxygen demand (COD), and residue coefficient. The digestion test was performed in batch digesters that were loaded with sheep manure with the doses of crude glycerin: 0, 3, 6, 9, 12, and 15% in the substrate. The process efficiency was measured by the reduction of TS, VS, and COD as well as the production of biogas. No differences were observed for the production of TS and manure among the diets. The contents of VS, COD, and MPN of TC and TTC were greater in manure from animals fed with higher concentrate ratio. Multiple linear models were generated according to the reductions of VS, TS, COD and production and potential of biogas and methane production and hence, both the additions of concentrate in the diet and crude glycerin in the codigestion influenced, in a positive way, the removal organic load in digesters.

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Avaliação de parâmetros da biodigestão anaeróbia de dejetos de suínos alimentados com dietas à base de milho e sorgo

Cited by 15 publications

References 8 publications

Co-digestion of swine excreta associated with increasing levels of crude glycerin

Co-digestion of swine excreta associated with increasing levels of crude glycerin

Production of a product similar to gelatin from chicken feet collagen

Quantification, characterization, and anaerobic digestion of sheep manure: The influence of diet and addition of crude glycerin

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