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发帖数: 43926 | 3 The nutritional value of dried maca root is high, similar to cereal grains
such as rice and wheat. The average composition is 60-75% carbohydrates, 10-
14% protein, 8.5% dietary fiber, and 2.2% fats. Maca is rich in the dietary
minerals calcium and potassium (with low content of sodium), and contains
the essential trace elements iron, iodine, copper, manganese, and zinc, as
well as fatty acids including linolenic acid, palmitic acid, and oleic acids
, and 19 amino acids.[8]
(1R,3S)-1-Methyltetrahydro-carboline-3-carboxylic acid
In addition to sugars and proteins, maca contains uridine, malic acid, and
its benzoyl derivative, and the glucosinolates, glucotropaeolin and m-
methoxyglucotropaeolin. The methanol extract of maca tuber also contains (1R
,3S)-1-methyltetrahydro-carboline-3-carboxylic acid, a molecule which is
reported to exert many activities on the central nervous system.[9] Many
different alkamides were found in maca.[10]
Further, maca contains selenium and magnesium,[citation needed] and includes
polysaccharides.[11] Maca's reported beneficial effects for sexual function
could be due to its high concentration of proteins and vital nutrients;[12]
maca contains a chemical called p-methoxybenzyl isothiocyanate, which
reputedly has aphrodisiac properties.[2][5] |
