鸡枞菌饮料的体外抗氧化特性研究

Study on the antioxidation in vitro of Termitornyces Albuminosus beverages

为研究鸡枞菌饮料的体外抗氧化能力,测定了鸡枞菌饮料对DPPH自由基(DPPH·)、超氧阴离子自由基(O_2^-·)、羟基自由基(·OH)、ABTS自由基(ABTS^+·)的清除能力,考察了饮料在人工模拟胃肠液中的总还原能力及其对油脂氧化的抑制作用。结果表明:鸡枞菌饮料和V_C(0.2 mg/mL)对DPPH·、O_2^-·、·OH、ABTS^+·均有清除作用,对各自由基的清除能力由强到弱的顺序是V_C>1∶5全菇饮料>1∶5菌根饮料>1∶10全菇饮料;在人工模拟胃肠液中,饮料和V_C的总还原能力均低于常规溶液中的总还原能力;鸡枞菌饮料对猪油、芝麻油也有一定的抗氧化效果,随氧化时间延长,抗油脂氧化能力均低于V_C、V_E(0.2 mg/mL)。因此,鸡枞菌饮料具有较强的体外抗氧化性,是一种值得开发的饮品。

To research the antioxidant capacity in vitro of Termitornyces albuminosus beverages, tile abilities of the beverages to scavenge DPPH free radicals （ DPPH · ）, superoxide anion （ O2^-· ）, hydroxyl （ · OH） and ABTS radical （ ABTS^ ＋ ·） were determinated in this paper.The total antioxidant capacity under the environment of artificial simulation gastric and intestinal juices and oil antioxidant effect of the beverages were also studied in the experiment. The results showed that Termitornyces albuminosus beverages and VC （0.2 mg/mL）had effective ability to scavenge DPPH., O2 ^-·,· 0H,ABTS ^＋ ·, and the scavenging activity from strong to weak order was VC 〉 1 ： 5 full mushroom drinks 〉 1 ： 5 mycorrhizal beverages 〉 1 ： 10 full mushroom drinks.The total antioxidant activity in the artificial simulated gastric and intestinal juice of the beverages and Vc were lower than that in normal solution.The beverages also had certain antioxidant effect to lard oil and sesame oil while its antioxidant was smaller than that of VC and VE （0.2 mg/mL）.Therefore, Termitornyces albuminosus beverages had strong antioxidant capacity in vitro and merited development.