Cholesterol-Raising Diterpenes in Types of Coffee Commonly Consumed in Singapore, Indonesia and India and Associations with Blood Lipids: A Survey and Cross Sectional Study

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Cholesterol-Raising Diterpenes in Types of Coffee Commonly Consumed in Singapore, Indonesia and India and Associations with Blood Lipids: A Survey and Cross Sectional Study

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Title: Cholesterol-Raising Diterpenes in Types of Coffee Commonly Consumed in Singapore, Indonesia and India and Associations with Blood Lipids: A Survey and Cross Sectional Study
Author: Naidoo, Nasheen; Speer, Karl; Lee, Jeanette; Buchmann, Sandra; Koelling-Speer, Isabelle; Chen, Cynthia; van Dam, Rob M.; Rebello, Salome A.; Tai, E. Shyong

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Citation: Naidoo, Nasheen, Cynthia Chen, Salome A. Rebello, Karl Speer, E. Shyong Tai, Jeanette Lee, Sandra Buchmann, Isabelle Koelling-Speer, and Rob M. van Dam. 2011. Cholesterol-raising diterpenes in types of coffee commonly consumed in Singapore, Indonesia and India and associations with blood lipids: A survey and cross sectional study. Nutrition Journal 10(1): 48.
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Abstract: Background: To measure the content of cholesterol-raising diterpenes in coffee sold at the retailer level in Singapore, Indonesia and India and to determine the relationship of coffee consumption with lipid levels in a population-based study in Singapore. Methods: Survey and cross-sectional study in local coffee shops in Singapore, Indonesia and India to measure the diterpene content in coffee, and a population-based study in Singapore to examine the relationship of coffee consumption and blood lipid levels. Interviews and coffee samples (n = 27) were collected from coffee shops in Singapore, Indonesia and India. In addition, 3000 men and women who were Chinese, Malay, and Indian residents of Singapore participated in a cross-sectional study. Results and Discussion: The traditional 'sock' method of coffee preparation used in Singapore resulted in cafestol concentrations comparable to European paper drip filtered coffee (mean 0.09 ± SD 0.064 mg/cup). This amount would result in negligible predicted increases in serum cholesterol and triglyceride concentrations. Similarly low amounts of cafestol were found in Indian 'filter' coffee that used a metal mesh filter (0.05 ± 0.05 mg/cup). Coffee samples from Indonesia using the 'sock' method (0.85 ± 0.41 mg/cup) or a metal mesh filter (0.98 mg/cup) contained higher amounts of cafestol comparable to espresso coffee. Unfiltered coffee from Indonesia contained an amount of cafestol (4.43 mg/cup) similar to Scandinavian boiled, Turkish and French press coffee with substantial predicted increases in serum cholesterol (0.33 mmol/l) and triglycerides (0.20 mmol/l) concentrations for consumption of 5 cups per day. In the Singaporean population, higher coffee consumption was not substantially associated with serum lipid concentrations after adjustment for potential confounders [LDL-cholesterol: 3.07 (95% confidence interval 2.97-3.18) for <1 cup/week versus 3.12 (2.99-3.26) for ≥ 3 cups/day; p trend 0.12]. Conclusions: Based on the low levels of diterpenes found in traditionally prepared coffee consumed in Singapore and India, coffee consumption in these countries does not appear to be a risk factor for elevation of serum cholesterol, whereas samples tested from Indonesia showed mixed results depending on the type of preparation method used.
Published Version: doi:10.1186/1475-2891-10-48
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3115845
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:8808826
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