2.4. Statistical analysis
Results are presented as mean from analytical triplicate, and the reproducibility of the results is expressed as pooled standard deviation values (Pooled SD) for the total folate content in spinach. Pooled standard deviations were calculated as the square roots of the sum of variances of replicates pondered by the degrees of freedom, according to Taylor (1987).
Results are presented as mean from triplicate and the reproducibility is expressed as the standard deviation for total folate content in green beans. Pooled standards deviations were not used in this case because the industrial chains for green beans were not perfect replicates, in contrast to spinach.
Student T-tests were performed using biochemical (for spinach and green beans) replicates. The first one consists in mean comparison for 3 batches of 3 data × 5 treatments from fresh products (Raw material, Before washing, After washing, After blanching, Final product). The second one consists in mean comparison for 5 batches of 3 data × 5 treatments from fresh products (Raw material, Before blanching, After blanching, Before adding covering liquid, Final product). T-test was carried out to highlight significant differences between conditions of samples preparation using the XLSTAT© data analysis toolbox. A p-value < 0.05 was considered as significant.
2.4. Statistical analysisResults are presented as mean from analytical triplicate, and the reproducibility of the results is expressed as pooled standard deviation values (Pooled SD) for the total folate content in spinach. Pooled standard deviations were calculated as the square roots of the sum of variances of replicates pondered by the degrees of freedom, according to Taylor (1987).Results are presented as mean from triplicate and the reproducibility is expressed as the standard deviation for total folate content in green beans. Pooled standards deviations were not used in this case because the industrial chains for green beans were not perfect replicates, in contrast to spinach.Student T-tests were performed using biochemical (for spinach and green beans) replicates. The first one consists in mean comparison for 3 batches of 3 data × 5 treatments from fresh products (Raw material, Before washing, After washing, After blanching, Final product). The second one consists in mean comparison for 5 batches of 3 data × 5 treatments from fresh products (Raw material, Before blanching, After blanching, Before adding covering liquid, Final product). T-test was carried out to highlight significant differences between conditions of samples preparation using the XLSTAT© data analysis toolbox. A p-value < 0.05 was considered as significant.
การแปล กรุณารอสักครู่..
