Prunus mahaleb L.(syn.Cerasus mahaleb L.Mill.)(mahaleb)is a member of medicinal plants and grows naturally in Tokat and in some other regions of Turkey.Seed and flesh of mahaleb fruit are used as mahaleb vine,mahaleb ...Prunus mahaleb L.(syn.Cerasus mahaleb L.Mill.)(mahaleb)is a member of medicinal plants and grows naturally in Tokat and in some other regions of Turkey.Seed and flesh of mahaleb fruit are used as mahaleb vine,mahaleb flour,mahaleb oil and as puree.Wild fruits contain many bioactive compounds,such as phenolic compounds,anthocyanins,flavonoids,and vitamins C and tocopherols.Depending on its health promoting effects it is usually used in folk medicine,such as for diabetes.It is shown that wild fruits and other parts of the mahaleb tree possess free radical scavenging,antioxidant,anti-inflammatory,and anticancer activities,and are classified as functional foods in preventing several chronic diseases.The present study evaluates the phenolic contents and antioxidant activities of the methanolic extracts of the fruits,leaves and barks of mahaleb plant that is collected from Tokat.The total phenolic content(170.21 mg gallic acid GA/g)in barks and the total flavonoid(260.5 mg quercetin QE/g)and anthocyanin(38.54 mg catechin CA/g)contents in fruits were greater than the other parts of the plants.Antioxidant activity of the samples was determined using the 2,2-diphenil-1picrylhydrazyl radical(DPPH).The antioxidant activity was the highest with the fruit,which showed 90.2%in DPPH assays.This study showed that all parts of mahaleb have high phenolic,flavonoid,and anthocyanin contents,potentially.These findings suggest that mahaleb plant(fruits can be consumed;the other parts not consumed but can be used in other ways)could serve as a source of bioactive compounds and as being rich in anthocyanin pigments,it could be used as a natural food colorant and antioxidant component in the utilization formula of functional foods.展开更多
Carrot （Daucus carom） is a valuable source of health promoting ingredients such as anthocyanin, carotenes, phenolic compounds etc. These substances are important to man as a source of pharmaceuticals, fragrance, agr...Carrot （Daucus carom） is a valuable source of health promoting ingredients such as anthocyanin, carotenes, phenolic compounds etc. These substances are important to man as a source of pharmaceuticals, fragrance, agrochemicals as well as food additives and used for prevention of many chronic diseases. Since these activities may be correlated with the presence of antioxidant compounds, extract of carrot and carrot callus were evaluated for their anthocyanin, flavonoids and total phenolic content as well as total antioxidant activity. Anthocyanin content was measured by spectrophotometric method. Total phenols and flavonoids were analyzed according to the Folin-Ciocalteu method and total antioxidant activity was assessed by ferric reducing/antioxidant power （FRAP） assay. Anthocyanin, flavonoids and total phenolic content were estimated to be 9.36 mg%, 46.96 mg% and 57.01 mg% for callus and 6.82 mg%, 32.96 mg% and 42.69 mg% for carrot, respectively, on fresh weight basis. The total antioxidant activity for the callus and carrot was found to be 51.13 mg, 118.77 mg, 91.08 mg and 140.08 mg equivalent and 79.40 mg, 184.44 mg, 141.43 mg and 217.52 mg equivalent to gallic acid, vitamin C, butylated hydroxyanisole （BHA） and trolox, respectively, when expressed per 100 g on fresh weight basis. The antioxidant activity of fresh carrot was found to be higher compared to its callus.展开更多
文摘Prunus mahaleb L.(syn.Cerasus mahaleb L.Mill.)(mahaleb)is a member of medicinal plants and grows naturally in Tokat and in some other regions of Turkey.Seed and flesh of mahaleb fruit are used as mahaleb vine,mahaleb flour,mahaleb oil and as puree.Wild fruits contain many bioactive compounds,such as phenolic compounds,anthocyanins,flavonoids,and vitamins C and tocopherols.Depending on its health promoting effects it is usually used in folk medicine,such as for diabetes.It is shown that wild fruits and other parts of the mahaleb tree possess free radical scavenging,antioxidant,anti-inflammatory,and anticancer activities,and are classified as functional foods in preventing several chronic diseases.The present study evaluates the phenolic contents and antioxidant activities of the methanolic extracts of the fruits,leaves and barks of mahaleb plant that is collected from Tokat.The total phenolic content(170.21 mg gallic acid GA/g)in barks and the total flavonoid(260.5 mg quercetin QE/g)and anthocyanin(38.54 mg catechin CA/g)contents in fruits were greater than the other parts of the plants.Antioxidant activity of the samples was determined using the 2,2-diphenil-1picrylhydrazyl radical(DPPH).The antioxidant activity was the highest with the fruit,which showed 90.2%in DPPH assays.This study showed that all parts of mahaleb have high phenolic,flavonoid,and anthocyanin contents,potentially.These findings suggest that mahaleb plant(fruits can be consumed;the other parts not consumed but can be used in other ways)could serve as a source of bioactive compounds and as being rich in anthocyanin pigments,it could be used as a natural food colorant and antioxidant component in the utilization formula of functional foods.
文摘Carrot （Daucus carom） is a valuable source of health promoting ingredients such as anthocyanin, carotenes, phenolic compounds etc. These substances are important to man as a source of pharmaceuticals, fragrance, agrochemicals as well as food additives and used for prevention of many chronic diseases. Since these activities may be correlated with the presence of antioxidant compounds, extract of carrot and carrot callus were evaluated for their anthocyanin, flavonoids and total phenolic content as well as total antioxidant activity. Anthocyanin content was measured by spectrophotometric method. Total phenols and flavonoids were analyzed according to the Folin-Ciocalteu method and total antioxidant activity was assessed by ferric reducing/antioxidant power （FRAP） assay. Anthocyanin, flavonoids and total phenolic content were estimated to be 9.36 mg%, 46.96 mg% and 57.01 mg% for callus and 6.82 mg%, 32.96 mg% and 42.69 mg% for carrot, respectively, on fresh weight basis. The total antioxidant activity for the callus and carrot was found to be 51.13 mg, 118.77 mg, 91.08 mg and 140.08 mg equivalent and 79.40 mg, 184.44 mg, 141.43 mg and 217.52 mg equivalent to gallic acid, vitamin C, butylated hydroxyanisole （BHA） and trolox, respectively, when expressed per 100 g on fresh weight basis. The antioxidant activity of fresh carrot was found to be higher compared to its callus.
