Percorrer por autor "Kasaiyan, Seyedalireza"
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- Oxidative effects of raw chickpea in reformulated pork patties: level of chickpea, temperature, and use of selected natural antioxidantsPublication . Kasaiyan, Seyedalireza; Ferreira, Iasmin da Silva; Villalobos-Delgado, Luz H.; Rigueiro, Samuel; Caro, Irma; Bermúdez Piedra, Roberto; Mateo, JavierRaw pulses as extenders in meat preparations result in oxidative processes. The oxidative effects of using a raw chickpea paste (CP; 1/2; chickpea/water) in pork patties were evaluated. In a first experiment, patties were prepared with increasing levels of CP (0 to 25%); in a second experiment, patties with CP (25%) and without CP (controls) were kept at 4 & DEG;C or 22 & DEG;C for 18 h before patty production; in a third experiment, chitosan, garlic, and cumin (from 0.5 to 2%) were added in patties with CP (25%) and controls, and their antioxidant effects were evaluated. Patties were analysed for pH, colour, and thiobarbituric acid reactive substances (TBARS) on days 1, 3, and 7 of refrigerated aerobic storage. Discoloration on day 1 and TBARS levels on days 1 to 7 of storage increased with the CP used. Higher batter temperature after mixing did not activate oxidative processes in the CP patties. Garlic showed pro-oxidant effects in controls and no effects in the CP patties. Chitosan and cumin did not reduce CP patties oxidation on the first day of storage, but they controlled oxidation during subsequent storage. More research is needed to prevent oxidation caused by using raw chickpeas in meat preparations.
- Use of olive and sunflower oil hydrogel emulsions as pork fat replacers in goat meat burgers: fat reduction and effects in lipidic qualityPublication . Ferreira, Iasmin da Silva; Vasconcelos, Lia; Leite, Ana; Botella-Martinez, Carmen; Pereira, Etelvina; Mateo, Javier; Kasaiyan, Seyedalireza; Teixeira, AlfredoDiversified strategies to incorporate healthier lipids in processed meat products are being developed. Alternative fat sources to replace animal fat associated with the reduction of fat content are some of the methods used to obtain healthier meat products well recognized by consumers. In order to create a healthier product that can also be consumed in the Halal and Kosher consumer markets, an experimental study was developed to assess the effects of replacing the pork fat (4%) with the same amount of hydrogel emulsion incorporating olive oil or sunflower oil. Three burgers were randomly selected from each lot manufactured and analyzed in triplicate. Burgers were physicochemical analyzed for pH, water activity, composition, fatty acid profile, color, yield, texture, oxidative stability, and volatile compounds and compared according to the fat source. Burgers with hydrogel emulsions can be considered reduced-fat meat products with a healthier fatty acid profile than pork fat burgers. The use of hydrogel emulsions did not negatively affect the quality characteristics assessed in the product and improved the oxidative stability during the storage of cooked burgers. By the characteristics and formulations evaluated, the replacement of pork fat with olive oil hydrogel emulsion proved to be the most effective strategy for obtaining a healthier goat meat product.