よくある質問
1. マカは食物ですか、薬ですか??
2. マカはどうやって食べるのですか??
3. マカにはいろいろ種類があるのですか??
4. マカの栄養素は??
5. Can children eat Yacon?
6. Why people with diabetes can eat Yacon even it is sweet?
7. What are the main Yacon components?
8. What are the Nutritional Value of the Oca?
9. How Mashua is used in folk Andean medicine?
10. What are the Nutritional Value of the Mashua?
11. What are the Nutritional Value of the Olluco?
12. What are the Nutritional Value of the Quinua?

マカは食物ですか、薬ですか?
マカはインカ帝国では普段から食される食べ物でした。そして今でもアンデスの人々は食べ物として食しています。彼らはマカに、体力および精神力の増強、精力増強、免疫力の向上等の効果があると信じています。近年、マカは精力増強する点において興味を持たれるようになりました。

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マカはどうやって食べるのですか?

アンデスの人々は生のマカをジャガイモのようにゆでて食べます。また、マカ根を天日乾燥し粉末にしたものを料理やおやつ、ジュースに混ぜて食べられています。

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マカにはいろいろ種類があるのですか?
マカにいろいろな種類はありません。ただし、皮の色は薄茶色、紫、薄紫、黒の4色あります。

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マカの栄養素は?
たんぱく質(18%)、炭水化物(66%)がマカの主要な要素です。その他、カルシウム、リン、マグネシウム、鉄、亜鉛、カリウム、食物繊維、ビタミンが含まれています。

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Can Children eat Yacon?
Yes, from InKas time the Andes children are eating Yacon as delicious fruit.
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Why people with diabetes can eat Yacon even it is sweet?
Yacon roots contains the sweet-tasting oligo-fructans which is a carbohydrate that the human body has no enzyme to hydrolyze passing it through the digestive tract unmetabolized.
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What are the main Yacon components?
Yacon roots contain mainly beta-1,2-oligofructans, phenolic acid (e.g. caffeic acid and ferulic acid), flavonoid quercetin, fiber and vitamins but Yacon leaf contain mainly phenolic acids and chlorogenic acid. 
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What are the Nutritional Value of the Oca?
The oca tuber has about 80% of water, 1.1% protein (but protein content in dehydrated oca can reach 11%.), 13% carbohydrate, sucrose, glucose, raffinose and stachyose. Vitamin content is variable, but can include significant amounts of retinol (vitamin A) and vitamin C 38 mg/100. Minerals like phosphorus, calcium, potassium and iron.
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How Mashua is used in folk Andean medicine?
Mashua is used in folk Andean medicine from ancient times to treat several diseases it used as emmenagogues to induce menstration, it is used as a diuretic, it is used to treat skin ulcers and kill lice, to treat kidney ailments, to break bladder and kidney stones, to treat kidney pain, and other kidney and liver diseases. Mashua contain high levels of isothiocyanates (p-methoxybenzyl isothiocyanate) known for their antibiotic, insecticidal, nematocidal, and diuretic properties. that substantiate several uses of mashua in local folk medicine. Also Mashua is considered an antiaphrodisiac. 
Recent scientific studies have isolated Mashua compounds that are antibiotic, diuretic, and that effect testosterone levels in males and estrogen levels in females. 
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What are the Nutritional Value of the Mashua?
Mashua contain all of the essential amino acids, its tuber  has about 86% of water, 1.6% of protein, and 11.6% of carbohydrates, vitamin content include significant amounts of vitamin C,  riboflavin and  Niacin, minerals contents include high presence of phosphorus, calcium, and iron. In general terms the nutritional content of Mashua is good when compared with other staple root and tuber crops eaten around the world.
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What are the Nutritional Value of the Olluco?
Olluco tubers has 75% of  water content, about 1% protein and 10-14% carbohydrate. it is rich in vitamin C and carotene.
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What are the Nutritional Value of the Quinua?
Quinua have the almost perfect amino acid composition, high content of calcium, phosphorus, and iron and low sodium content. The nutritional value of Quinua has been known from ancient times as the superior Inkas traditional cereal, is in fact, superior to milk solids in feeding trails (White et al. 1955). Protein content ranges from 10 to 18% with a fat content of 4.1 to 8.8%, starch 60.1%, ash 4.2%, and crude fiber 3.4%. The ash has been found to primarily consist of potassium and phosphorus (65% of total). Calcium and iron are significantly higher in Quinua than in rice, maize, wheat, or oats, Quinua alpha-amylase content  are higher than rice, proso millet and wheat (Lorenz and Nyanzi 1989). The mineral content of Quinua are generally higher than comparable cereals as well.
Quinua contain saponin in the seedcoat, which is removed by mechanical abrasion or washing Quinua grains with abundant water before to eat. Local people are using Quinua saponin as a detergent for clothing, washing and as an antiseptic to promote healing of skin injuries.

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