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The application of natural antimutagens and antioxidants, particularly those derived from higher plants has been seen as a promising approach to the protection of human health. In this work, we studied methanolic extracts from Sansevieria cylindrica, Sansevieria trifasciata, and Polianthes tuberosa plants focusing on their antioxidative and antimutagenic capacities based on the following parameters: inhibitory activity on lipid peroxidation, suppressing ability on direct-acting mutagen sodium azide-induced mutagenesis in Salmonella typhimurium cells. A clear dose-dependent decrease in lipid peroxidation was observed with all the extracts tested. Extracts from leaves of P. tuberosa and rhizomes of S. cylindrica and S. trifasciata (1 mg/mL) displayed the highest antioxidant effect. At the same time, extracts from rhizomes of S. cylindrica and S. trifasciata significantly reduced the sodium azide-induced mutations. The highest antimutagenic activity (76 %) in the S. typhimurium TA100 strain was obtained for the S. cylindrica rhizomes extract (1 mg/plate). We propose that the observed protective effects of plant extracts tested may correspond to a synergic participation of several secondary metabolites and mainly to polyphenolic compounds.

The application of natural antimutagens and antioxidants, particularly those derived from higher plants has been seen as a promising approach to the protection of human health. In this work, we studied methanolic extracts from Sansevieria cylindrica, Sansevieria trifasciata, and Polianthes tuberosa plants focusing on their antioxidative and antimutagenic capacities based on the following parameters: inhibitory activity on lipid peroxidation, suppressing ability on direct-acting mutagen sodium azide-induced mutagenesis in Salmonella typhimurium cells. A clear dose-dependent decrease in lipid peroxidation was observed with all the extracts tested. Extracts from leaves of P. tuberosa and rhizomes of S. cylindrica and S. trifasciata (1 mg/mL) displayed the highest antioxidant effect. At the same time, extracts from rhizomes of S. cylindrica and S. trifasciata significantly reduced the sodium azide-induced mutations. The highest antimutagenic activity (76 %) in the S. typhimurium TA100 strain was obtained for the S. cylindrica rhizomes extract (1 mg/plate). We propose that the observed protective effects of plant extracts tested may correspond to a synergic participation of several secondary metabolites and mainly to polyphenolic compounds.

There is a great shortage in poultry feed ingredients in Egypt; therefore, this study was carried out to evaluate the usage of some food industry byproducts and wastes in broiler diets. The effects of partial substitution of yellow corn (YC) with two levels of corn crunches waste (CCW), potato chips scraps (PCS), potato starchy waste (PSW), or sugar beet pulp (SBP) on growth performance, carcass traits and economic efficiency of broiler chicks were understudy. A total number of 297 unsexed one-day old ROSS broiler chicks were equally assigned into nine dietary groups (control and 8 treatments), each group of three even replicates. Two levels of each of the four byproducts partially replaced 5% or 10% of YC in the 8 treatments diets. Body weight (BW), body weight gain (BWG), feed consumption (FC), feed conversion ratio (FCR), and relative economic efficiency (REE) were estimated for the whole experimental period (6 weeks). At the end of the experiment, 6 birds from each group were sacrificed for evaluating different carcass traits. The results revealed that BW and BWG at 6 wks of age of the groups received 5% CCW or 10% PCS in place of YC were not significantly different from the control group; however, the lowest BW and BWG were detected for the groups received PSW or SBP. There were no significant differences in FC and FCR between all groups, except those received SBP which were worse. In regard to carcass traits, no significant differences were detected between treatments in breast % and legs % (thigh and drumstick); but eviscerated carcass weight, breast weight and legs weight were significantly lower for the groups received SBP. The best net revenue was detected for the group received CCW instead of 5% YC, while the worst net revenue and REE were detected for SBP groups. In conclusion, corn crunches waste or potato chips scraps could replace 5% or 10% YC; respectively, in broiler diets till 6 weeks of age without any adverse effect.

There is a great shortage in poultry feed ingredients in Egypt; therefore, this study was carried out to evaluate the usage of some food industry byproducts and wastes in broiler diets. The effects of partial substitution of yellow corn (YC) with two levels of corn crunches waste (CCW), potato chips scraps (PCS), potato starchy waste (PSW), or sugar beet pulp (SBP) on growth performance, carcass traits and economic efficiency of broiler chicks were understudy. A total number of 297 unsexed one-day old ROSS broiler chicks were equally assigned into nine dietary groups (control and 8 treatments), each group of three even replicates. Two levels of each of the four byproducts partially replaced 5% or 10% of YC in the 8 treatments diets. Body weight (BW), body weight gain (BWG), feed consumption (FC), feed conversion ratio (FCR), and relative economic efficiency (REE) were estimated for the whole experimental period (6 weeks). At the end of the experiment, 6 birds from each group were sacrificed for evaluating different carcass traits. The results revealed that BW and BWG at 6 wks of age of the groups received 5% CCW or 10% PCS in place of YC were not significantly different from the control group; however, the lowest BW and BWG were detected for the groups received PSW or SBP. There were no significant differences in FC and FCR between all groups, except those received SBP which were worse. In regard to carcass traits, no significant differences were detected between treatments in breast % and legs % (thigh and drumstick); but eviscerated carcass weight, breast weight and legs weight were significantly lower for the groups received SBP. The best net revenue was detected for the group received CCW instead of 5% YC, while the worst net revenue and REE were detected for SBP groups. In conclusion, corn crunches waste or potato chips scraps could replace 5% or 10% YC; respectively, in broiler diets till 6 weeks of age without any adverse effect.

There is a great shortage in poultry feed ingredients in Egypt; therefore, this study was carried out to evaluate the usage of some food industry byproducts and wastes in broiler diets. The effects of partial substitution of yellow corn (YC) with two levels of corn crunches waste (CCW), potato chips scraps (PCS), potato starchy waste (PSW), or sugar beet pulp (SBP) on growth performance, carcass traits and economic efficiency of broiler chicks were understudy. A total number of 297 unsexed one-day old ROSS broiler chicks were equally assigned into nine dietary groups (control and 8 treatments), each group of three even replicates. Two levels of each of the four byproducts partially replaced 5% or 10% of YC in the 8 treatments diets. Body weight (BW), body weight gain (BWG), feed consumption (FC), feed conversion ratio (FCR), and relative economic efficiency (REE) were estimated for the whole experimental period (6 weeks). At the end of the experiment, 6 birds from each group were sacrificed for evaluating different carcass traits. The results revealed that BW and BWG at 6 wks of age of the groups received 5% CCW or 10% PCS in place of YC were not significantly different from the control group; however, the lowest BW and BWG were detected for the groups received PSW or SBP. There were no significant differences in FC and FCR between all groups, except those received SBP which were worse. In regard to carcass traits, no significant differences were detected between treatments in breast % and legs % (thigh and drumstick); but eviscerated carcass weight, breast weight and legs weight were significantly lower for the groups received SBP. The best net revenue was detected for the group received CCW instead of 5% YC, while the worst net revenue and REE were detected for SBP groups. In conclusion, corn crunches waste or potato chips scraps could replace 5% or 10% YC; respectively, in broiler diets till 6 weeks of age without any adverse effect.