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Originally Posted by Ross
]I've been looking and trying to figure out how much sesamin is in sesame oil.
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Can't really be done, my friend. That's why the sesamin products are standardized to sesamin. All you can possible come up with is an average or mean amount of sesamin meaning one oil could have very little or a whole lot. And depending on where in the world the sesame oil comes from and all sorts of things...even the mean amount could vary.
I saw something on sesamin in 14 sesame oils from Taiwan. I'm not a math guy by any means (ask a steroid guru for conversions
) but I'll try to round down the amounts to give an idea.
The mean amount of lignans was around 11 mgs per gram of oil. Of those lignans around 80 percent was sesamin (some of the other lignans may be valuable too).
Say one tablespoon of sesame oil is a serving. That's 14 grams total fat. Even if you were getting the average amount of sesamin in all the sesame oils 1 tablespoon should yield around 154 mgs of sesamin.
The sesamin products are standardized to 500 mgs sesamin per serving. To get that from regular sesame oil you'd need a bit more than 3 tablespoons per serving. So about 45 grams of fat. And of course you WOULDN'T necessarily be getting that much sesamin at all. Maybe not even close. Not to say you couldn't derive some of the benefits of sesamin with reg oil. But if you want SESAMIN you want standardized, most likely.
I'm always screwing up math by the way, but you would have to use a lot of sesame oil and never be sure of sesamin content, in any case.
It seems a little weird though, becasue the bulk products give you 500 mgs sesamin per 1 gram of fat....Either my math is way wrong or those sesame oils they tested have very low lignan content.
Further, looking at this, I am having a hard time seeing how they could possibly claim so much sesamin in these prodcuts:
Research Paper
Lignan contents in sesame seeds and products
Ali A. Moazzami *, Stefanie L. Haese, Afaf Kamal-Eldin
Department of Food Science, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden
email: Ali A. Moazzami (Ali.Moazzami@lmv.slu.se)
*Correspondence to Ali A. Moazzami, Department of Food Science, Swedish University of Agricultural Sciences (SLU), Box 7051, 750 07 Uppsala, Sweden. Phone: +46 18 672063, Fax: +46 18 672995
Keywords
Sesame seed • sesame oil • lignan • sesamin • sesamolin • sesaminol • sesamolinol
Abstract
Sesame seed (Sesamum indicum L.) is a rich source of furofuran lignans with a wide range of potential biological activities. The major lignans in sesame seeds are the oil-soluble sesamin and sesamolin, as well as glucosides of sesaminol and sesamolinol that reside in the defatted sesame flour. Upon refining of sesame oil, acid-catalyzed transformation of sesamin to episesamin and of sesamolin to epimeric sesaminols takes place, making the profile of refined sesame oils different from that of virgin oils. In this study, the total lignan content of 14 sesame seeds ranged between 405 and 1178 mg/100 g and the total lignan content in 14 different products, including tahini, ranged between 11 and 763 mg/100 g. The content of sesamin and sesamolin in ten commercial virgin and roasted sesame oils was in the range of 444-1601 mg/100 g oil. In five refined sesame oils, sesamin ranged between 118 and 401 mg/100 g seed, episesamin between 12 and 206 mg/100 g seed, and the total contents of sesaminol epimers between 5 and 35 mg/100 g seed, and no sesamolin was found. Thus, there is a great variation in the types and amounts of lignans in sesame seeds, seed products and oils. This knowledge is important for nutritionists working on resolving the connection between diet and health. Since the consumption of sesame seed products is increasing steadily in Europe and USA, it is important to include sesame seed lignans in databases and studies pertinent to the nutritional significance of antioxidants and phytoestrogens. It is also important to differentiate between virgin, roasted and refined sesame oils.
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I'm not seeing it. Someone needs to explain to me how they are producing an affordable oil with the content being half sesamin!