This paper presents findings of an experiment for the comparison of sugar concentration in extracted juice of fresh fruit to that of commercially-bottled 100% fruit juice with a “no sugar added” attribute. The goal of the study was to determine if the sugar content of bottled 100% fruit juice with a “no sugar added” label is equivalent to that of extracted juices of fresh fruits. The reported study was performed to address the potential concern that commercially-bottled 100% fruit juices with “no sugar added” may contain higher sugar content than extracted juice of fresh fruit. The fruit juices that were tested included apple, grapefruit, orange, pineapple, pomegranate, red grape and white grape. All bottled juices and fresh fruits were purchased in Toledo, Ohio, USA during the winter of 2012. The fresh fruits were juiced and three samples were tested for sugar concentration using a Brix refractometer. The same testing protocol was also applied to the bottled 100% fruit juice. Application of the Mann-Whitney test on the experimental data demonstrated no statistically significant difference (p > 0.05). The results suggested that the sugar content in the commercially bottled 100% fruit juice with the “no sugar added” label is an accurate representation of sugar content in the freshly-extracted juice of the corresponding fruit.
References
[1]
H. J. Klee, “Improving the Flavor of Fresh Fruits: Ge- nomics, Biochemistry, and Biotechnology,” New Phy- tologist, Vol. 187, No. 1, 2010, pp. 44-56.
doi:10.1111/j.1469-8137.2010.03281.x
[2]
K. I. France, “Public Attitudes towards the Healthiness of Fruit Juices,” Journal of Human Nutrition & Dietetics, Vol. 13, No. 5, 2000, p. 369.
doi:10.1046/j.1365-277x.2000.00001-16.x
[3]
J. Briffa, “Juicy Details-Why Fruit Juices Pose a Hazard to Our Health,” 2006.
http://www.drbriffa.com/2006/11/10/juicy-details-why-fruit-juices-pose-a-hazard-to-our-health/
A. Gaby, “Adverse Effects of Dietary Fructose,” Alterna- tive Medicine Review, Vol. 10, No. 4, 2005, pp. 294-306.
[7]
M. M. Smith and M. Davis, “Carbohydrate Absorption from Fruit Juices in Young Children,” Pediatrics, Vol. 95, No. 3, 1995, p. 340.
[8]
L. Dolson, “Low-Carb Fruits: Lists of the Best and Worst,” 2011. http://lowcarbdiets.about.com/od/what
[9]
C. E. O’Neil, T. A. Nicklas, M. Zanovec and I. L. Fulgoni, “Diet Quality Is Positively Associated with 100% Fruit Juice Consumption in Children and Adults in the United States,” Nutrition Journal, Vol. 10, No. 1, 2011, pp. 17-26. doi:10.1186/1475-2891-10-17
[10]
D. Birkhed, “Sugar Content, Acidity and Effect on Plaque pH of Fruit Juices, Fruit Drinks, Carbonated Beverages and Sport Drinks,” Caries Research, Vol. 18, No. 2, 1984, pp. 120-127.
[11]
G. Neilson, “Insulin: The Good and the Bad,” 2012.
http://basskilleronline.com/insulin-good-bad.html
[12]
R. Bolton, K. Heaton and L. Burroughs, “The Role of Dietary Fiber in Satiety, Glucose, and Insulin: Studies with Fruit and Fruit Juices,” The American Journal of Clinical Nutrition, Vol. 34, No. 2, 1981, pp. 211-217.
[13]
M. Eng, “100% Fruit Juice Comes Under Fire in War on Obesity,” 2012.
http://www.bendbulletin.com/article/20120531/NEWS0107/205310318/
[14]
B. Dennison, H. Rockwell and S. Baker, “Excess Fruit Juice Consumption by Preschool-aged Children Is Associated with Short Stature and Obesity,” Official Journal of the American Academy of Pediatrics, Vol. 99, No. 1, 1997, pp. 15-22.
%M. Nisperos-Carriedo and P. Shaw, “Comparison of Volatile Flavor Components in Fresh and Processed Or- ange Juices,” Journal of Agricultural and Food Chemis- try, Vol. 38, No. 4, 1990, pp. 1048-1052.
doi:10.1021/jf00094a029
[20]
N. Densupsoontorn, P. Jirapinyo, N. Thamonsiri, R. Wongarn, P. Phosuya, A. Tritiprat, S. Patraarat, P. Pidatcha and L. Suwannthol, “Comparison of the Nutrient Content of Fresh Fruit Juices versus Commercial Fruit Juices,” Journal of the Medical Association of Thailand, Vol. 85 No. 2, 2002, pp. S732-S738.