Gestão De Resíduos E a Indústria De Beneficiamento De Arroz

Lorenzett, Daniel Benitti; Neuhaus, Mauricio; Schwab, Natália Teixeira

doi:10.3895/s1808-04482012000100011

Cited by 6 publications

(5 citation statements)

References 1 publication

(1 reference statement)

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“…Tendo em vista a enorme quantidade desse grão produzida no mundo, é inegável que se tenha, como resultado de seu beneficiamento, uma grande quantidade de resíduos gerados. Visando ao aproveitamento desses dejetos, esforços vêm sendo empregados com o intuito de se evitar uma destinação inadequada dos subprodutos gerados ao longo da cadeia produtiva do arroz (LORENZETT et al, 2012).…”

Section: Introductionunclassified

Estudo Prospectivo Sobre o Uso da Cinza de Casca de Arroz em Catalisadores Heterogêneos

Oliveira

Braga

2022

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A cinza de casca de arroz (CCA) é um resíduo proveniente da agricultura e tem se mostrado como potencial poluidor. Esse artigo teve por objetivo realizar um estudo sobre a aplicação da CCA na síntese de catalisadores ou como suporte catalítico. Para tal, foi utilizada uma metodologia de prospecção realizada na perspectiva tecnológica, com busca no sítio do INPI e no sistema Orbit® Intelligence. O estudo tecnológico revelou que no sítio do INPI nenhuma patente estava relacionada ao uso de CCA como catalisador. Em relação a base de dados Orbit® Intelligence, a China se destacou como país com mais depósitos de patentes. Foram recuperadas 26 famílias de patentes, na qual se observou que o código C01B-039/02 é o principal representante. O mapeamento realizado mostrou que os estudos sobre CCA em síntese de catalisadores e/ou como suporte catalítico têm crescido com o passar dos anos.

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Section: Introductionunclassified

Estudo Prospectivo Sobre o Uso da Cinza de Casca de Arroz em Catalisadores Heterogêneos

Oliveira

Braga

2022

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“…Rice is commonly produced by removing the hull and bran layers of the rough rice kernel in hulling and milling processes, respectively (Saman et al, 2019). Rice bran, rice grits, and rice hulls are the main rice byproducts (Lorenzett et al, 2012). They can contain 40% carbohydrates and moderate levels of crude protein (12%) and lipids (21%) (Lima et al, 2000;Vilani et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Utilization of rice byproducts as carbon sources in high-density culture of the Pacific white shrimp, Litopenaeus vannamei

Leite

Melo

Nunes

2020

Revista Brasileira De Zootecnia

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Aquaculture Full-length research articleUtilization of rice byproducts as carbon sources in high-density culture of the Pacific white shrimp, Litopenaeus vannameiABSTRACT -This study was conducted to evaluate the effect of rice byproducts on water quality, microbial community, and growth performance of L. vannamei juveniles. Shrimp of 0.98±0.10 g body weight (BW) were reared in 49 tanks of 1.5 m 3 under 127 animals m −2 for 77 days. Rice bran, rice grits, and rice hulls were mixed into five different fertilizers varying their fiber content (90, 110, 150, 200, and 250 g kg −1 ) and compared against sugarcane molasses (MO) and unfertilized tanks (UNF). Rice byproducts and MO were applied in water three times a week at a fixed rate of 4.5 g m −3 . Water salinity, pH, temperature, and dissolved oxygen reached 43±2 g L −1 , 8.03±0.32, 30.2±0.90 °C, and 5.03±0.53 mg L −1 , respectively. Settleable solids (SS) were higher in tanks fertilized with rice byproducts (from 2.5±1.0 to 3.1±1.1 mL L −1 ) and MO (3.4±1.0 mL L −1 ). Total ammonia nitrogen (0.19±0.09 mg L −1 ), nitrite (5.97±2.04 mg L −1 ), and nitrate (1.29±0.48 mg L −1 ) were kept low without any significant differences among treatments. The concentration of heterotrophic bacteria and fungi was significantly higher in rice byproducts compared with MO. Water fertilization had no effect on final shrimp survival (85.5±9.5%), weekly growth (0.72±0.11 g), and feed conversion ratio (1.59±0.10). Tanks treated with rice byproducts, except with 90 g kg −1 fiber, resulted in a higher final shrimp BW (from 9.04±1.56 to 9.52±1.89 g) compared with MO (8.75±2.14 g) and UNF (7.74±1.48 g). Gained yield and feed intake were significantly higher for tanks treated with rice byproducts than with UNF. A mix of rice byproducts can be equally or more effective as carbon sources to shrimp culture than MO.

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“…Among these residues, rice bran has nutritional potential, but it has a high fibre content and antinutritional factors (Piyaratne, Atapattu, Mendis, & Amarasinghe, ), limiting its use in fish feed. The processing of rice yields approximately 9% rice bran, which is used for animal nutrition, including fish (Lorenzett, Neuhaus, & Schwab, ).…”

Section: Introductionmentioning

confidence: 99%

Effects of rice bran protein concentrate on the growth performance and digestive enzyme activities of jundiá ( Rhamdia quelen ) (Quoy and Gaimard, 1824)

et al. 2019

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The aim of this study was to assess the effect of increasing inclusion levels (100, 150, 200 and 300 g/kg) of rice bran protein concentrate (RBPC) in jundiá (Rhamdia quelen) diets using growth, body composition, somatic indices and digestive enzyme activity as parameters. Five isoproteic (370.08 ± 0.04 g/kg) and isocaloric (13.38 ± 0.04 MJ/kg) diets were formulated with four replicates per treatment. After acclimation, 500 jundiá juveniles (initial mean weight of 6.28 ± 0.12 g) were distributed into 20 round polyethylene tanks (280 L) (25 fish per tank) coupled to a thermoregulated water recirculating system. The fish were fed experimental diets three times daily (at 9:00, 13:00 and 17:00 hr) to apparent satiation. At the end of the trial (45 days), no significant differences were found in the body chemical composition, somatic indices, and trypsin and chymotrypsin enzymes of the fish fed experimental diets. A lower final weight and a lower condition factor were found in fish fed diets RBPC10 (100 g/kg of RBPC) and RBPC15 (150 g/kg of RBPC). Based on the results of this study, it is clear that the use of RBPC (at high dietary inclusion levels of 200 and 300 g kg−1) is an effective alternative protein source to fishmeal.

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Gestão De Resíduos E a Indústria De Beneficiamento De Arroz

Cited by 6 publications

References 1 publication

Estudo Prospectivo Sobre o Uso da Cinza de Casca de Arroz em Catalisadores Heterogêneos

Estudo Prospectivo Sobre o Uso da Cinza de Casca de Arroz em Catalisadores Heterogêneos

Utilization of rice byproducts as carbon sources in high-density culture of the Pacific white shrimp, Litopenaeus vannamei

Effects of rice bran protein concentrate on the growth performance and digestive enzyme activities of jundiá ( Rhamdia quelen ) (Quoy and Gaimard, 1824)

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