Curcuma longa is the best

Dear Vinesh Kumar

Many of the spices which are used in daily cuisine are also used in traditional medicines and have antioxidant property.

Best wishes. 

Flovonoids rich plants , green tea are the best examples.

Dear Mahesha

As far as I know, flavonoids rich medicinal plants are used in traditional medicines, I doubt green tea is used as a traditional medicine. In China however, several herbal teas are used in Traditional Chinese Medicine. In India too, traditional herbalists/therapists do use decoctions of herbs.

Good luck. 

Tusi (Ocimum tenuiflorum) is a excellent anti-oxidant medicinal herb. Also most of the medicinal herbs have a arsenal of medicinal properties and anti-oxidant is one among them.

Some of the list of antioxidant plants-- potato, tomato, gala apple, sunflower seeds, watermelon, prunes ,burdock root, chili peppers,  fennel, broccoli, gooseberries, honeyberry strawberries, blueberries, raspberries, parsley, kale and red beets etc.

Dear Dr. Bhuiyan

Which of these plants you listed are used in traditional medicines? I am interested to know the traditional practices of your country.

Best wishes.

Dear Dr. Rao,

Thank for your interest regarding bangladeshi traditional medicine. We use many plants as a primary source of medicine. I think, most of the plants between India and Bangladesh are common, only few are different.  The above lists-we use gooseberries and fennel only medicinal purposes, others are people eat in usual foods.

Dear Dr. Bhuiyan

Thank you very much. 

Best wishes.

In our lab many plant used for antioxidant activity among them Mangifera indica, P. guajava, Terminalia spp., M. zapota, L. siceraria, C. longa, M. charantia etc showed the potential antioxidant activity, In some antioxidant assay these plant extracts showed better activity then standard used.

Dear Researcher,

Thank you very much for vital information.

Dear Vinesh

If you ask me to take the name of a single plant, I would say- Amla (Embilica officinalis). It is nature's most powerful antioxidant. 

Amla is the richest source of Vitamin C in natural form (30 times the amount of Vitamin C found in oranges), and contains rich minerals, amino acids and pectin.

What is most important is that Amla's antioxidant Vitamin C, unlike synthetic Vitamin C, does not lose its value through processing due to the presence of tannins in Amla which retard its oxidation. Because of this, Amla is found to be one of the strongest rejuvenatives in Indian traditional medicine. It is referred to in ancient text as the best medicine to prevent aging.

Regards

Very famous Aloe vera

And each salad u eat

Dear Dr. Alok Nahata

A very interesting answer indeed! Can you please provide any evidence or published references that the vitamin C content of amla (Emblica officinalis syn. Phyllanthus emblica) does not decrease on storing or processing? I collected literature on this crop for a chapter which I contributed to a book on Phyllanthus species. The literature states that the vitamin C content decreases on storing as well as processing the fruits, thereofore several methods have been tried to store the fruits and retain maximum content of vitamin C. I appreciate if you can enlighten me on any latest evidence on this aspect.

Best wishes.

Dear Dr. Rao 

Appreciate your interest in the topic which made me to inquire further and the exercise proved to be fruitful. 

I have found many links which state that tannins retard the oxidation of vitamin C in amla. I am attaching the links which are from different published sources including some books, journals and webpages. As a matter of fact, I found one such study which proves that tannins in amla are retarding the oxidation of vitamin C,hence making it a good source of Vitamin C. A tannin containing gallic acid, ellagic acid and glucose in its molecule and naturally present in the fruit retards the oxidation of the vitamin and renders the fruit a valuable antiscorbutic in the fresh as well as in the dry condition. I am attaching the aforesaid paper (biochemj01060-0083.pdf) for your perusal along-with the various links as below:

• https://books.google.com.my/books?id=-q45EZEfz0sC&pg=PA175&lpg=PA175&dq=tannins+in+amla+retard+the+oxidation+of+vitamin+C&source=bl&ots=ZVZd0Mx6gI&sig=DfeKw9rtYIFEOTubvUcy6KDzY5M&hl=en&sa=X&ei=xmruVL_UNtSJuwT_lYHQAQ&ved=0CCEQ6AEwAQ#v=onepage&q=tannins%20in%20amla%20retard%20the%20oxidation%20of%20vitamin%20C&f=false
• https://books.google.com.my/books?id=KwYIsLRyDp4C&lpg=SA9-PA11&ots=8hLnVpjAY5&dq=tannins%20in%20amla%20retard%20the%20oxidation%20of%20vitamin%20C&pg=SA9-PA11#v=onepage&q=tannins%20in%20amla%20retard%20the%20oxidation%20of%20vitamin%20C&f=false
• https://books.google.com.my/books?id=NRpR1PU77RAC&lpg=PA131&ots=NuFWq_OkLm&dq=tannins%20in%20amla%20retard%20the%20oxidation%20of%20vitamin%20C&pg=PA131#v=onepage&q=tannins%20in%20amla%20retard%20the%20oxidation%20of%20vitamin%20C&f=false
• http://www.naturalhealthweb.com/articles/Agarwal11.html
• https://books.google.com.my/books?id=9S6buRXrry8C&lpg=PA245&ots=ZDv11TMQVr&dq=tannins%20in%20amla%20retard%20the%20oxidation%20of%20vitamin%20C&pg=PA245#v=onepage&q=tannins%20in%20amla%20retard%20the%20oxidation%20of%20vitamin%20C&f=false
• http://rramco.com/productdetails.php?catid=17&pid=10

Best Regards

Dear Dr. Alok

Thank you for the information and the links.

Best wishes.

Respected Dr. B. R. Rajeswara and Dr. Alok Sir ,

thank you very much for your valuable information and discussion. 

There are many medicinal plants having antioxidant properties ,Guduchi(Tinospora cordifolia) ,Shatavari(Asparagus racemosus),Amla has already been discussed,Behda(Terminalia belerica),Hirda(Terminalia chebula),Turmeric(curcumin) are few of the many herbs having antioxidants

Dear Prof. Vinesh

Please check if the attached articles are of any use to you though they are not directly associated with traditional medicinal use.

Also check the following link if you have not checked it already.

Good luck.

https://www.researchgate.net/post/What_may_be_the_possible_applications_of_compounds_having_good_antioxidant_potential_in_the_food_industry

tea , espacialy green tea

The recently published Table of Antioxidants by the United States Department of Agiricicuture (USDA) seems to be the most authentic collection for plant antioxidants. Please see the Attachment.

Agreed with Olajuwon okubena, more than 75% plants described in Ayurvedic and related traditional health practices exhibits anti-oxidant properties. 

There are a lot of these. In Colombia we have, for example, agraz (Vaccinium meridonale), in the US, arándanos or blueberries (Vaccinium macrocarpon), in Southamerica, you can find, for example, Anacardium occidentale, (marañón), guajava (Psidium guajava), (Phyllanthus niruri) chancapedra in Bazil, and is possible that this specie be found in India, in the ayurvedic medicine. I don't know, are there a lot of this, but there aren't enough space to put all. Excuse me, but my english is not the best.

sorry

in Ayurveda, many plants are told possess antioxidant properties. You may go through the following article link on Withania somnifera & Tinospora cordifolia, which are commonly used for their antioxidant properties.

http://www.ayujournal.org/article.asp?issn=0974-8520;year=2014;volume=35;issue=1;spage=46;epage=49;aulast=Kuchewar

More than 60% plants described in Ayurveda are having antioxidant action like Turmeric, Ginger, Onion, Cumin seeds, Aloe vera and many more.

we do know that coloured fruits and plants have the greater % of flavonoids which are antioxidants and this % is higher according the colour tone.

Kyriaki gave a very logical answer based on physical property of color. This is a very interesting observation.

Capsicum has high level of vit C which is already considered as antioxidant one.

as for vit.C rose hips are the best especially from the wild roses

Thank you for the list of plants with anti-oxidant activities, Dr. Olajuwon Okubena.

Phyllanthus emblica (= Emblica officinalis) of family Phyllanthaceae

Phyllanthus niruri, it's in Colombia, Brasil and India too. In Colombia, this species is known as viernes santo, riñonaria, barbasquillo. It's used as antibacterial, litolitic, and antidiabetic.

@ Dr. Vinesh Kumar

Please also take a look at this useful link.

http://nopr.niscair.res.in/bitstream/123456789/7962/1/NPR%205%284%29%20326-334.pdf

Thanks!

In Colombia areñ there a lot of this. Vaccinium floribundum and V. meridionale are tipic of traditional uses. For exemple, astringent and antioxidant activity. Ericaceae and some Rosaceae near to paramo contain condensed tannins, tanic acid and others. I don't know if has hydrolycable tannins. Maybe. The other hand, Bidens pilosa is it so many abundant. It has, you know, antioxidant properties.