Dear Jessica,
you take a laboratory scale, put an empty glass or other container on it, weigh it. Then fill it up with water coming from the fridge. weigh it. Record the difference in weight which is your volume. Then weigh all foods in this container and divide it by the volume. Describe the food well, e.g. fish powder, loose; raw eggplant without skin in 1 cm cubes. Record your location (altitude). I would be happy to include your data in our next version of the FAO/INFOODS density database
 
Best wishes
Ruth
 
P.S. Anyone else willing to contribute data are most welcome

From: Food Composition Discussion Group [[log in to unmask]] On Behalf Of Raneri, Jessica (Bioversity) [[log in to unmask]]
Sent: Monday, May 11, 2015 2:12 PM
To: [log in to unmask]
Subject: Best Practices for Calculating Density Conversion Factors

Dear Infoods Members,
 
We’re currently attempting to identify the density conversion factors of some unique foods in Vietnam in order to analyse 24hr recall data. Is anyone aware of guidelines or best-practices manual on how to calculate these densities? We would like to eventually make the data publically available.
 
Many thanks in advance.
 
Jessica Raneri, MSc
Nutritionist,  Research Support Officer
Nutrition and Marketing Diversity Programme,
Bioversity International
Via dei Tre Denari, 472/a
00057 Maccarese (Fiumicino)
Rome, Italy
 
P Please consider the environment before printing this e-mail
 
 
 


To unsubscribe from the InFoods-Food-Comp-L list, click the following link:
https://listserv.fao.org/cgi-bin/wa?SUBED1=InFoods-Food-Comp-L&A=1



To unsubscribe from the InFoods-Food-Comp-L list, click the following link:
https://listserv.fao.org/cgi-bin/wa?SUBED1=InFoods-Food-Comp-L&A=1