Showing posts with label Colleges Virginia Tech. Show all posts
Showing posts with label Colleges Virginia Tech. Show all posts

Thursday, March 29, 2012

Consumer perception and sensory effect of oxidation in savory-flavored yogurt enriched with n-3 lipids

Consumer perception and sensory effect of oxidation in savory-flavored yogurt enriched with n-3 lipids

Journal of Dairy Science Volume 95, Issue 4 , Pages 1690-1698, April 2012



Department of Food Science and Technology, Virginia Tech, Blacksburg 24061
Received 1 October 2011; accepted 22 November 2011.


Abstract

The objective of this study was to determine the effects of different oils (butter, fish, and oxidized fish) on sensory characteristics of a savory [chile-lime (CL)] low-fat yogurt using descriptive (unstructured line scales, 5 attributes) and affective (hedonic) sensory testing methods.

Yogurts were each manufactured at low [1.1–1.2% total fat; 0.43% added oil (wt/wt)] or high [1.6% total fat; 1% added oil (wt/wt)] levels of fish oil, with high levels of fish oil targeted to deliver 145mg of docosahexaenoic acid+eicosapentaenoic acid/170g of yogurt.

In a preliminary study, untrained panelists (n=31), using triangle tests, did not discriminate between low levels of fish and butter oils in unflavored yogurts but could discern yogurt with oxidized fish oil, even at the low level.

Trained panelists (n=12) described lower lime and acid flavor characteristics in CL-flavored yogurts containing 1% oxidized fish oil compared with yogurts containing low levels of oxidized fish oil and low or high levels of butter and fish oils. Oxidized flavor was higher in CL-flavored yogurts with oxidized fish oil (low and high) and with the high level of fish oil.

Consumer ratings (n=100; 9-point hedonic scale; 9=“like extremely) of overall acceptability and flavor acceptability were bimodally distributed, with overall means between 4 and 5 (“neither like nor dislike”) for CL-flavored yogurt with butter or fish oils (high level).

The upper 50% of responses for yogurt with butter or fish oil were 6.51 and 6.31, respectively, for overall acceptability (“like slightly”), and 7.02 and 6.56, respectively, for flavor acceptability.

A large segment of consumers may be interested in incorporating heart-healthy n-3 lipids in their diets through frequent consumption of a savory yogurt enriched with n-3 fatty acids… http://www.journalofdairyscience.org/article/S0022-0302(12)00134-8/abstract?elsca1=etoc&elsca2!=email&elsca3=0022-0302_201204_95_4&elsca4=nutrition_dietetics


I’m a newspaper reporter. I’m pushy, inconsiderate and I do not respect boundaries.
Kevin Dayhoff is an artist - and a columnist for:
Twitter: https://twitter.com/kevindayhoffTwitpic: http://twitpic.com/photos/kevindayhoff
Kevin Dayhoff's The New Bedford Herald: http://kbetrue.livejournal.com/ = www.newbedfordherald.net

Tumblr: Kevin Dayhoff Banana Stems www.kevindayhoff.tumblr.com/
Smurfs: http://babylonfluckjudd.blogspot.com/
Google profile: https://profiles.google.com/kevindayhoff/

E-mail: kevindayhoff(at)gmail.com
My http://www.explorecarroll.com/ columns appear in the copy of the Baltimore Sunday Sun that is distributed in Carroll County: https://subscribe.baltsun.com/Circulation/
+++++++++++++++

Thursday, September 24, 2009

Virginia Tech April 16 Memorial

Virginia Tech April 16 Memorial

September 21, 2009

Kevin Dayhoff http://tinyurl.com/y9db2az
Twitpic: http://twitpic.com/photos/kevindayhoff

http://twitpic.com/j0yrw 20090921 VT mem (1): “Virginia Tech Memorial 1” September 21, 2009 http://www.kevindayhoff.net/ http://tinyurl.com/y9db2az
Click here for a larger image: http://twitpic.com/j0yrw


http://twitpic.com/j0z1h 20090921 VT mem (2): “Virginia Tech Memorial 2” September 21, 2009 http://www.kevindayhoff.net/
Click here for a larger image: http://twitpic.com/j0z1h


http://twitpic.com/j0z5k 20090921 VT mem (5): “Virginia Tech Memorial 5 – We Will Prevail” September 21, 2009 http://www.kevindayhoff.net/
Click here for a larger image: http://twitpic.com/j0z5k

http://twitpic.com/j0zaj 20090921 VT mem (11): “Virginia Tech Memorial 11 – We Remember” September 21, 2009 http://www.kevindayhoff.net/
Click here for a larger image: http://twitpic.com/j0zaj

http://kevindayhoff.blogspot.com/2009/09/virginia-tech-april-16-memorial.html http://tinyurl.com/y9db2az

Twitpic: http://twitpic.com/photos/kevindayhoff

Related: http://twitpic.com/izm9n “Virginia Tech exit 118b” September 21, 2009 Kevin Dayhoff http://tinyurl.com/ych4tp8

http://kevindayhoffart.blogspot.com/2009/09/virginia-tech-exit-118b.html http://tinyurl.com/ych4tp8

*****

My http://www.explorecarroll.com/ columns appear in the copy of the Baltimore Sunday Sun that is distributed in Carroll County: https://subscribe.baltsun.com/Circulation/

*****
My http://www.explorecarroll.com/ columns appear in the copy of the Baltimore Sunday Sun that is distributed in Carroll County: https://subscribe.baltsun.com/Circulation/