COMPARISON OF PARMESAN CHEESE DRYING COURSE BY MEANS OF REGRESSION METHODS
Journal Title: Colloquium Biometricum; Colloquium Biometricum (Online) - Year 2016, Vol 46, Issue
Abstract
The aim of the article is to compare regression lines which describe relations between the inverse of water content in cheese and time of drying. Each line involves one of the combinations of Parmesan’s type cheese piece sizes (4 mm, 6 mm) and drying temperatures (30°C and 50°C) and piece size of 8 mm dried in 50°C. Regression lines were compared for five combinations of piece sizes and drying temperatures. The duration of the drying process was ten hours. Regression coefficients in the equations were compared using partial F-test. Multiple pair comparisons were examined by means of SimReg procedure. The latter method allowed to identify pairs of significantly different regression equations as well as pairs of equations that do not differ significantly. A similar analysis was performed for the observations regarding the second drying period (from 5th to 10th hour of drying). In addition to the aforementioned methods also the procedure of determining groups of mutually parallel straight lines was used. The application of that method enabled the division of five equations into two groups.
Authors and Affiliations
Małgorzata Szczepanik, Paweł Sobczak, Jacek Mazur, Kazimierz Zawiślak, Rafał Nadulski, Mirosława Wesołowska-Janczarek, Dorota Domagała, Józef Grochowicz, Wioletta Żukiewicz-Sobczak
Keywords
Related Articles
- EP ID EP190147
- DOI -
- Views 141
- Downloads 0
On the efficiency of orthogonal treatment contrasts in multistratum incomplete split-split-plot designs constructed by square lattice designs
We construct an incomplete split-split-plot design for three factor experiments. The method is based on a semi-Kronecker (Khatri-Rao) product of three matrices. We use two square lattice designs for whole plot treatments...
APPLICATION OF MULTIVARIATE STATISTICAL ANALYZES FOR COMPARISON OF BETULA POLLEN SEASONS 2001-2016 IN LUBLIN
The aim of the study was finding similar groups of birch pollen season in Lublin in 2001-2016 based on the pollen seasons parameters such as start, end, duration, peak date, peak value and annual pollen sum. Cluster anal...
D-OPTIMAL DESIGNS WITH NEGATIVE CORRELATED ERRORS BASED ON TERNARY DESIGNS: CONSTRUCTION
Here, we study new construction methods of the regular D-optimal chemical balance weighing design with equally negative correlated errors. The construction method is based on the set of the incidence matrices of the tern...
COMPARISON OF PARMESAN CHEESE DRYING COURSE BY MEANS OF REGRESSION METHODS
The aim of the article is to compare regression lines which describe relations between the inverse of water content in cheese and time of drying. Each line involves one of the combinations of Parmesan’s type cheese piece...
MULTIDIMENSIONAL ASSESSMENT OF PHYSICOCHEMICAL PROPERTIES OF DIETARY BISCUITS
In the paper multivariate statistical techniques in combined analysis of measurements of physicochemical properties of dietary biscuits made according to different recipes have been applied. Relationships between two gro...