Sensory evaluation of whey and sweet cream buttermilk.
The objective of this work was to characterize the sensory attributes of sweet cream buttermilk (CBM) and a nontraditional product, whey buttermilk (WBM). Whey buttermilk results from processing whey cream into butter. The products were evaluated as fresh liquid buttermilk obtained directly from the butter churn, and as reconstituted buttermilk or whey buttermilk powders. Sweet cream buttermilk and WBM were produced either at the Dairy Products Technology Center (experimental samples, n = 2) or provided by the industry (n = 2 from 2 different commercial sources). Nine panelists were trained for twenty-four 1-h sessions; they then rated samples on a 15-cm line scale in triplicate using descriptive analysis. Data obtained were analyzed using SAS statistical software. Results indicated that WBM had similar sensory characteristics as regular CBM; however, there was a marked color difference between them. Liquid buttermilk was not significantly different from reconstituted buttermilk powder on many attributes. However, WBM was significantly more yellow, more sour, and more astringent than the CBM samples, and it had more cardboard flavor than the commercially produced CBM. Liquid buttermilk was not significantly different from reconstituted buttermilk powder on many attributes. However, some buttermilk types had more cardboard aroma and flavor in their powdered form than in liquid form. Most attributes showed no significant differences across replicates, indicating consistency of rating. Principal component analysis showed that attributes were separated on the 2 principal components based on production site and processing form (fresh vs. reconstituted).
Jinjarak
S
S
Food Science and Nutrition Department, California Polytechnic University, San Luis Obispo 93407, USA.
Olabi
A
A
Jiménez-Flores
R
R
Sodini
I
I
Walker
J H
JH
D000328:Adult; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003116:Color; D043302:Cultured Milk Products / Q000737:chemistry; D005223:Fats / Q000032:analysis; D005260:Female; D005511:Food Handling / Q000379:methods; D018857:Food Packaging; D005519:Food Preservation / Q000379:methods; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007785:Lactose / Q000032:analysis; D008297:Male; D008894:Milk Proteins; D009584:Nitrogen / Q000032:analysis; D009812:Odorants / Q000032:analysis; D012677:Sensation; D012903:Smell; D013649:Taste; D000067816:Whey Proteins
D005223:Fats; D008894:Milk Proteins; D000067816:Whey Proteins; D007785:Lactose; D009584:Nitrogen