Effect of process variables on trypsin inhibitor activity (TIA), phytic acid and tannin content of extruded African breadfruit–corn–soy mixtures: A response surface analysis

Nwabueze, Titus U.

doi:10.1016/j.lwt.2005.10.004

Cited by 59 publications

(43 citation statements)

References 22 publications

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“…Abd et al (2003), studied the nutritional value of several legume cultivars and reported an increase in vitro protein digestibility and a decrease in antinutritional factors in the samples processed by extursion. Also, Nwabueze (2007) reported similar results in extruded African breadfruit-corn and defatted soybean mix. Taking into account functional and nutraceutical properties of soybean and corn, the aim of this study was to evaluate physicochemical, nutritional and infrared spectroscopy changes of an optimized soybean/corn flour extrudate.…”

Section: Introductionsupporting

confidence: 54%

Physico-chemical, nutritional and infrared spectroscopy evaluation of an optimized soybean/corn flour extrudate

et al. 2014

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A central composite design using RMS (Response Surface Methodology) successfully described the effect of independent variables (feed moisture, die temperature and soybean proportion) on the specific parameters of product quality as expansion index (EI), water absorption index (WAI), water solubility index (WSI) and total color difference (ΔE) studied. The regression model indicated that EI, WAI, WSI and ΔE were significant (p<0.05) with coefficients of determination (R 2 ) of 0.7371, 0.7588, 0.7622, 0.8150, respectively. The optimized processing conditions were obtained with 25.8 % feed moisture, 160°C die temperature and 58 %/42 % soybean/corn proportion. It was not found statistically changes in amino acid profile due to extrusion process.

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Section: Introductionsupporting

confidence: 54%

Physico-chemical, nutritional and infrared spectroscopy evaluation of an optimized soybean/corn flour extrudate

et al. 2014

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“…Diversos estudos relatam que, durante a germinação, o aumento da atividade da enzima fitase ocorre, contribuindo para a redução do ácido fítico (SANGRONIS; MACHADO, 2007;GHAVIDEL;PRAKASH, 2007;MUBARAK, 2005;CREDE et al, 2004;OLOYO, 2004;BARCELOS;VILAS BOAS;LIMA, 2002;RIBEIRO;OLIVEIRA, 1999;AYET et al, 1997;BAU et al, 1997), com possível aumento na disponibilidade de minerais, vitaminas e proteínas (NWABUEZE, 2007;CREDE et al, 2004).…”

Section: Resultsunclassified

Alterações químicas em grãos de soja com a germinação

Martínez¹,

Martinez²,

Souza³

et al. 2011

Ciênc. Tecnol. Aliment.

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“…According to Nwabueze (2007), quantification of tannins in the samples was achieved by dissolving 5 g of the aqueous and TOF extracts in 50 mL of distilled water in a conical flask, allowing the mixture to stand 30 min with shaking the flask at 10 min intervals and then centrifuging it at 5000 Â g to obtain a supernatant (tannin extract). These extracts were diluted to 100 mL in a standard flask using distilled water.…”

Section: Determination Of Tannin Contentmentioning

confidence: 99%

Evaluation of the antimutagenic, antigenotoxic, and antioxidant activities ofEriobotrya japonicaleaves

Mokdad-Bzéouich

Kilani-Jaziri

Mustapha

et al. 2015

Pharmaceutical Biology

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Context: The leaves of Eriobotrya japonica (Thunb.) Lindl. (Rosaceae) are used in traditional medicine to treat inflammatory diseases. However, information about the antigenotoxic and antioxidant properties of its leaves remains to be elucidated. Objective: The objective of this work was to evaluate the mutagenic/antimutagenic, genotoxic/ antigenotoxic, and antioxidant potentials of aqueous and total oligomers flavonoid (TOF) extracts from E. japonica. Materials and methods: The mutagenic/antimutagenic and genotoxic/antigenotoxic potentials of extracts (50, 250, and 500 mg/plate) were evaluated, respectively, by the Ames test with 48 h incubation and the SOS chromotest test with 2 h incubation. The antioxidant capacity of these extracts (ranging from 50 to 700 mg/mL) was tested using xanthine/xanthine oxidase and the deoxyribose assays. Results: Eriobotrya japonica extracts showed neither mutagenic nor genotoxic effect. The highest protective effect against methyl methanesulfonate and 2-aminoanthracene was obtained in the presence of aqueous extract, with IC 50 values of 80 and 140 mg/plate, respectively, against S. typhimurium TA104. Moreover, this extract (500 mg/plate) was also able to reduce significantly the genotoxicity induced by nitrofurantoin and aflatoxin B1 with IC 50 values of 140 and 240 mg/assay, respectively. Likewise, aqueous and TOF extracts inhibited xanthine oxidase and superoxide anion formation with IC 50 values ranging from 45 to 95 and from 70 to 90 mg/mL, respectively. However, TOF extract is more efficient in inhibiting hydroxyl radical and chelating iron ion with IC 50 values of 140 and 400 mg/mL, respectively, when compared with the aqueous extract. Conclusion: Eriobotrya japonica prevents the genotoxicity of some carcinogenic substances probably thanks to its antioxidant capacities.

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Effect of process variables on trypsin inhibitor activity (TIA), phytic acid and tannin content of extruded African breadfruit–corn–soy mixtures: A response surface analysis

Cited by 59 publications

References 22 publications

Physico-chemical, nutritional and infrared spectroscopy evaluation of an optimized soybean/corn flour extrudate

Physico-chemical, nutritional and infrared spectroscopy evaluation of an optimized soybean/corn flour extrudate

Alterações químicas em grãos de soja com a germinação

Evaluation of the antimutagenic, antigenotoxic, and antioxidant activities ofEriobotrya japonicaleaves

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