Improving the oxidative stability of pork by antioxidant type phytonutrients.

Abstract

The objective of this study was to determine the influence of supplementations with 3.5 or 7.5 mg dihydroquercetin (experimental groups D1 and D2) or with 0.255 or 0.545 g dry distilled rose petals (experimental groups R1 and R2)/kg/d added as to pig's combined feed on the parameters of lipolysis expressed by acid value; lipid hydroperoxides expressed by peroxide value, lipid oxidation secondary products expressed by 2-tiobarbituric acid reactive substances (TBARS), pH and L*, a*, b* colour characteristics in m. Longissimus lumborum et thoracis, m. Semimembranosus, backfat and leaf fat stored 24 h and 7d at 2±1°C, or 315 d at -18±1°C. A total of 120 pigs were randomly divided to five groups - a control (C) and four experimental (D1, D2, R1 and R2) each fed 45 d prior to harvest with shown above levels of phytonutrients enriched diets. More pronounced effects were determined (P ≤ 0.05) at frozen storage compared to chilled storage. The oxidative and colour stabilities of chilled (2±1°C) and frozen (-18°C) pork are comparatively higher when pig's diet was supplemented with 3.5 mg dihydroquercetin or 0.255 g dry distilled rose petals/kg/d. The conclusion was made can the supplementation of pig's combined feed (finisher) with 3.5 mg dihydroquercetin or 0.255 g dry distilled rose petals/kg/d is a promising strategy to increase the oxidative stability of lean pork or fat and stabilized pork meat colour without deleterious changes of meat acidity.

Effect of Cedrus deodara extract on the physiochemical and sensory properties of salted meat and its action mechanism

“…Although some synthesis additives are effective, their potential toxicity for the human body is being considered. Recently, some relevant studies have reported that the utilization of natural antioxidants may be the alternative approach to protect food quality and safety (Mahajan et al., 2016; Vlahova‐Vangelova et al., 2020; Yu et al., 2018).…”

Raising Calves in the Dairy Period Without Antibiotics

“…Positive results were obtained with the use of DHQ in the raising of broilers, including in conditions of high temperature [9], as well as in the raising of pigs with higher resistance to pre-slaughter stress [10].…”

Effect of modelled stress and adaptogens on microstructural characteristics of pork from fast-growing hybrid animals

“…The animals were kept in the physiological yard of the L.K. Ernst Federal Science Center for Animal Husbandry (VIZh) from May 21 to September 28, 2019. Animals in all groups were kept under the same conditions (temperature, humidity and light regimes, the gas composition of the air inside the building), which corresponded to the zoohygienic norms in all groups.…”