Avaliação do volume de oxigênio absorvido por sachê absorvedor de oxigênio em diferentes temperaturas e umidades relativas

Cruz, Renato Souza; Soares, Nilda de Fátima Ferreira; Geraldine, Robson Maia

doi:10.1590/s1413-70542008000500027

Cited by 5 publications

(5 citation statements)

References 3 publications

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“…The band at 1631 cm −1 characteristic of the C = O groups, indicates the complexation with iron oxide (Hwang et al, 2014), and the band at 509 cm −1 refers to silicon. The differences in the bands occurred because the reactions with the atmospheric O 2 (Cruz et al, 2008).…”

Section: Characterization Of O 2 -Absorbing Sachetsmentioning

confidence: 99%

“…However, at 9 and 12 days a drop in the O 2 volume was observed, which may be related to the irreversible reactions of iron with oxygen, which was in excess. Another fact is the formation of a barrier by iron hydroxide particles closer to the sachet walls, which difficult the diffusion of O 2 molecules inside the sachet (Cruz et al, 2008).…”

Section: Optical Characterization Of Packaging Materialsmentioning

confidence: 99%

“…Oxygen absorbers based on the iron oxidation principle, are found in the form of small sachets, containing reducing agents such as iron oxide, ferrous components or platinum, combined with various catalysts. The air-permeable sachets are placed inside the packaging where they react with water vapor from the food, forming active metal reducing agents, which capture oxygen inside the packaging and converts to more stable oxides (Cruz et al, 2008). These can also be applied under refrigeration and freezing conditions (Patel et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of packaging systems with O₂-absorbers on quality of minimally processed soybean sprouts

Cantelli

Carrão-Panizzi

Moreira

et al. 2022

Food sci. technol. int.

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This study evaluated the influence of O2-absorbing sachets into different packages polyethylene terephthalate (PET – E1), low density polyethylene (LDPE – E2), and PET/LDPE (E3) on the quality of minimally processed soybean sprouts (MP-sprouts). The MP-sprouts were stored up to 12 days and characterized for physicochemical, microbiological and sensory attributes. The O2-absorbing sachet showed changes during exposure to the environment by the formation of amorphous iron hydroxide, which was observed by the analysis of functional groups and XRD. The packaging used in the study showed high transmittance and clarity, and low Haze, being a good feature for storing the MP product. All packaging systems showed an increase in the volume of absorbed oxygen (cm3) up to 9 days of storage. The physic-chemical characteristics of the MP-sprouts stored for 12 days were preserved in the different packages, showing no difference regarding the use of the O2-absorbing sachet. The O2-absorbing sachet not influenced the quality of MP-sprouts during the stored (12 days). The best visual aspect was observed in PET package (with and without O2-absorbing sachet) being classified as excellent, without color change. The MP-sprouts also fulfilled the microbiological quality standards and presented 75.11% acceptability and 72.40% purchase intention.

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Section: Characterization Of O 2 -Absorbing Sachetsmentioning

confidence: 99%

Section: Optical Characterization Of Packaging Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Evaluation of packaging systems with O₂-absorbers on quality of minimally processed soybean sprouts

Cantelli

Carrão-Panizzi

Moreira

et al. 2022

Food sci. technol. int.

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“…Oxygen absorbers are able to inhibit the growth of aerobic bacteria, moulds and stop alterations of pigments and flavours. The most common absorber consists of a small size oxygen permeable sachet containing an iron-based powder along with a catalyst (CRUZ et al, 2008;BRODY et al, 2001;AZEREDO et al, 2000). O 2 permeates through plastic polymers according to their oxygen transmission rates, but it generally permeates more slowly than carbon dioxide.…”

Section: Introductionmentioning

confidence: 99%

Active packaged lamb with oxygen scavenger/carbon dioxide emitter sachet: physical-chemical and microbiological stability during refrigerated storage

Trindade

Villanueva

Antunes

et al. 2013

Braz. J. Food Technol.

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Lamb meat has been commercialized in Brazil almost exclusively as a frozen product due to the longer shelf life provided by freezing when compared to refrigeration. However, as a result of the current trend of increased demand for convenience products, a need has emerged for further studies to facilitate the marketing of refrigerated lamb cuts. The aim of the present study was to evaluate the contribution of active packaging technology in extending the shelf life of lamb loins (Longissimus lumborum) stored under refrigeration (1±1 ° C) when compared to the traditional vacuum packaging. For this purpose, two kinds of sachets were employed: oxygen scavenger sachet and oxygen scavenger/carbon dioxide emitter sachet. Experiments were conducted in three treatments: 1) Vacuum (Control), 2) Vacuum + oxygen scavenger sachet and 3) Vacuum + oxygen scavenger/carbon dioxide emitter sachet. Microbiological (counts of anaerobic psychrotrophs, coliform at 45 ° C, coagulase-positive staphylococci, Salmonella and lactic acid bacteria) and physical-chemical (thiobarbituric acid reactive substances, objective color, pH value, water loss from cooking and shear force) analyses were carried out weekly for a total storage period of 28 days. The experiment was performed three times for all treatments. Results showed that the lamb meat remained stable with respect to the majority of the evaluated physical and chemical indexes and remained within the standards established by Brazilian legislation for pathogenic microorganisms throughout the storage period in all three packaging systems. However, all treatments presented elevated counts of anaerobic psychrotrophic microorganisms and lactic acid bacteria, reaching values above 10(7) CFU/g at 28 days of storage. Thus, under the conditions tested, neither the oxygen scavenger sachet nor the dual function sachet (oxygen scavenger/carbon dioxide emitter) were able to extend the shelf life of refrigerated lamb loin when added to this meat vacuum packaged.

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“…Os fungos filamentosos como Aspergillus niger são conhecidos por serem estritamente aeróbicos e requerem quantidades mínimas de oxigênio para crescer. No estudo realizado porCruz (2006) , observou-se que, na faixa de concentração inferior a 1%, apresentou um retardo significativo de crescimento de Aspergillus niger. Assim, existe a possibilidade que o nitrato de cálcio afetou a absorção de oxigênio do Aspergillus niger e flavus, levando um retardo significativo no seu desenvolvimento, bem como a produção de proteínas especificas, a exemplo da calmodulina que possuí ligação com o cálcio e ação na defesa vegetal.…”

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Efeito do nitrato de cálcio na fisiologia e sanidade na semente de Glycine max L.

Bernardino Vitorino

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A soja (Glycine max L.) possui um grande valor econômico para o Brasil e o mundo, com isso os produtores buscam o maior rendimento da lavoura. Entretanto, a cultura é acometida por diversas doenças que são responsáveis por ocasionar grandes prejuízos e podem ser transmitidas via sementes. Assim, o tratamento das sementes se torna, então, um parâmetro fundamental no manejo e controle da qualidade. Objetivou-se determinar a qualidade sanitária e fisiológica de sementes de soja com nitrato de cálcio nas concentrações de 0,2; 0,4; 0,6; 0,8; 1,0; 1,2; 1,4 e 1,6% e fungicida dicarboximida. Para o teste de sanidade foram utilizadas 100 sementes por tratamento, distribuídas em cinco repetições de vinte sementes cada. Em seguida as sementes foram incubadas em placas de petri contendo dupla camada de papel filtro “Blotter Test”, esterilizado e umedecido com ADE. No teste de germinação, também foram utilizadas 100 sementes por tratamento, divididas em quatro repetições de vinte cinco sementes. As mesmas foram semeadas em papel germitest primeiramente esterilizado. O delineamento utilizado nos experimentos da análise sanitária e fisiológica foi o inteiramente casualizado (DIC). Realizou-se análise de regressão para os dados quantitativos com a significância dos modelos verificados pelo teste F (p ≤ 0,05). As concentrações de 0,2; 0,4; 0,6; 0,8; 1,0; 1,2; 1,4 e 1,6% de nitrato de cálcio influenciaram negativamente na germinação de sementes de soja. As concentrações de 0,4 e 0,6% proporcionaram o aumento no comprimento das raízes e plantas. Todas as concentrações nitrato de cálcio foram eficientes na redução dos fungos Aspergillus niger e Aspergillus flavus.

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Avaliação do volume de oxigênio absorvido por sachê absorvedor de oxigênio em diferentes temperaturas e umidades relativas

Cited by 5 publications

References 3 publications

Evaluation of packaging systems with O₂-absorbers on quality of minimally processed soybean sprouts

Evaluation of packaging systems with O₂-absorbers on quality of minimally processed soybean sprouts

Active packaged lamb with oxygen scavenger/carbon dioxide emitter sachet: physical-chemical and microbiological stability during refrigerated storage

Efeito do nitrato de cálcio na fisiologia e sanidade na semente de Glycine max L.

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Avaliação do volume de oxigênio absorvido por sachê absorvedor de oxigênio em diferentes temperaturas e umidades relativas

Cited by 5 publications

References 3 publications

Evaluation of packaging systems with O2-absorbers on quality of minimally processed soybean sprouts

Evaluation of packaging systems with O2-absorbers on quality of minimally processed soybean sprouts

Active packaged lamb with oxygen scavenger/carbon dioxide emitter sachet: physical-chemical and microbiological stability during refrigerated storage

Efeito do nitrato de cálcio na fisiologia e sanidade na semente de Glycine max L.

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Product

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About

Evaluation of packaging systems with O₂-absorbers on quality of minimally processed soybean sprouts

Evaluation of packaging systems with O₂-absorbers on quality of minimally processed soybean sprouts