Sat, Aug 20, 2011 - Page 13 News List

Chocolate wards off hunger, and maybe sunburn too
巧克力除了充飢外 可能還可防曬

A hostess serves visitors at a chocolate fountain during a chocolate convention in Lima, Peru on July 7.
一位女服務生七月七日於祕魯利馬舉行的巧克力博覽會上,在巧克力噴泉處招待訪客。

Photo: Reuters
照片:路透

Scientists in Canada said Monday that they plan to study whether eating dark chocolate not only satisfies sweet tooth cravings, but protects against sunburn as well.

The study by researchers at Laval University in Quebec will monitor the effects of chocolate consumption on fair-skinned volunteers between the ages of 25 and 65, each of whom will be prevailed upon to eat three squares of chocolate per day for 12 weeks.

Earlier research in Germany and Britain has found that chemicals in chocolate called polyphenols increase blood flow close to the skin, which helps protect against ultraviolet rays, but those studies were too small in scale to be conclusive.

The scientists at Laval University’s Institute of Nutraceuticals and Functional Foods hope to confirm the link in a study of 60 people, about half of whom already have been recruited, they said.

Test subjects who have been fed chocolate are to be exposed to ultraviolet rays in a laboratory and their skin then checked for sun damage. A control group will be given a placebo.

Scientists said the study will only include female participants so that researchers can control for the variability between the body’s natural hormones in men and women.

(AFP)

加拿大科學家週一表示,他們計畫研究吃巧克力是否不僅能滿足對甜食的口腹之慾外,還能保護(皮膚)免於曬傷。

這項魁北克省拉瓦爾大學的研究,將針對年齡二十五歲至六十五歲皮膚白皙的自願受試者,監測她們食用巧克力的影響。每位將被說服連續十二週每日吃三個巧克力方塊。

先前在德國與英國的研究發現,巧克力中稱為多酚的化學物質,能增加血液流動靠近皮膚,因而有助於抵擋紫外線,但這些研究皆因樣本數太少,而無法做出結論。

拉瓦爾大學營養食品與機能食品研究學院的科學家表示,希望能在六十人的研究中,證實這項關聯性。而這六十名受試者中,已經徵得約一半曾參與先前研究的受試者。

給予巧克力的受試者要暴露在實驗室中的紫外線,之後再測試她們皮膚曬傷的程度。對照組則給予安慰劑。

科學家說這項研究將只限定女性受試者,如此研究員得以控制男女之間天然荷爾蒙差異的變數。

(法新社/翻譯:林亞蒂)

TODAY’S WORDS 今日單字

1. craving n.

渴望 (ke3 wang4)

例: Women often have strange food cravings during pregnancy.

(女性常在懷孕期間對食物有異常的渴望。)

2. prevail upon v. phr.

說服 (shui4 fu2)

例: The guests at the banquet prevailed upon their host to make a speech.

(晚宴中的貴賓說服宴客主人發表演說。)

3. variability n.

變數;異質性 (bian4 shu4; yi4 zhi2 xing4)

例: There’s a high degree of variability among the world’s cultures, but also a striking universality.

(世界不同文化之間有高度的異質性,但彼此也有顯著的同質性。)


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