姜黄种

分布

它原产于热带泰米尔纳德邦、印度东南部，并适合于摄氏温度20°C和30°C（68°F和86°F）之间和相当丰沛年降雨量以利其成长茁壮。

生化成分

食用摄取量

姜黄素一日的成人摄取量，建议是以每公斤体重使用0~3mg来计算。在安全考量下，建议每日摄取量在200mg以内，避免摄取过多产生反效果。但也有研究结果显示姜黄毒性低，喂食剂量大于2.0g/kg 小鼠体重，也无明显不良反应。姜黄素为脂溶性，与油脂一起烹煮会提高吸收率，与黑胡椒一起进食，胡椒碱亦可提高姜黄素的吸收率。

Turmeric , or Curcuma longa , is a flowering plant in the ginger family Zingiberaceae. It is a perennial, rhizomatous, herbaceous plant native to the Indian subcontinent and Southeast Asia that requires temperatures between 20 and 30 °C (68 and 86 °F) and high annual rainfall to thrive. Plants are gathered each year for their rhizomes, some for propagation in the following season and some for consumption or dyeing.

The rhizomes can be used fresh, but they are often boiled in water and dried, after which they are ground into a deep orange-yellow shelf-stable spice powder commonly used as a coloring and flavoring agent in many Asian cuisines, especially for curries (curry powder). Turmeric powder has a warm, bitter, black pepper-like flavor and earthy, mustard-like aroma.

Although long used in Ayurvedic medicine, there is no high-quality clinical evidence that consuming turmeric or the principal turmeric constituent, curcumin, is effective for treating any disease. Curcumin, a bright yellow chemical produced by the turmeric plant, is approved as a food additive by the World Health Organization, European Union, and United States Food and Drug Administration. Turmeric and its extract curcumin are generally safe but have recently been linked, especially in high-bioavailability forms, to rare cases of immune-mediated acute liver injury that typically resolve after stopping use, though severe outcomes can occur if use continues.

Etymology

The name possibly derives from Middle English or Early Modern English as turmeryte or tarmaret. It may be of Latin origin, terra merita ("deserved earth"). The Latin specific epithet longa means long.