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. 2020 Apr 4;9(4):435. doi: 10.3390/foods9040435

Table 3.

Calculation of nonparametric correlation (Spearman r) between different plant parts and solvents.

Parts/Solvents Parameters Gram-Positive Gram-Negative
Leaf vs. Pseudostem Spearman r 0.2345 0.4936
95% confidence interval 0.0523 to 0.4016 0.3401 to 0.6215
p value (two-tailed) 0.0099 <0.0001
Is the correlation significant? (alpha = 0.05) Yes Yes
Pseudostem vs. Corm Spearman r 0.2439 0.6321
95% confidence interval 0.0623 to 0.4100 0.5068 to 0.7313
p value (two-tailed) 0.0073 <0.0001
Is the correlation significant? (alpha = 0.05) Yes Yes
Leaf vs. Corm Spearman r 0.1172 0.3396
95% confidence interval −0.0687 to 0.2953 0.1655 to 0.4931
p value (two-tailed) 0.2022 0.0001
Is the correlation significant? (alpha = 0.05) No Yes
Acetone vs. Ethanol Spearman r 0,5105 0.4070
95% confidence interval 0.3599 to 0.6351 0.2406 to 0.5502
p value (two-tailed) <0.0001 <0.0001
Is the correlation significant? (alpha = 0.05) Yes Yes
Ethanol vs. Hexane Spearman r 0.3523 0.4316
95% confidence interval 0.1795 to 0.5040 0.2685 to 0.5706
p value (two-tailed) <0.0001 <0.0001
Is the correlation significant? (alpha = 0.05) Yes Yes
Acetone vs. Hexane Spearman r 0.5198 0.5326
95% confidence interval 0.3709 to 0.6427 0.3861 to 0.6529
p value (two-tailed) <0.0001 <0.0001
Is the correlation significant? (alpha = 0.05) Yes Yes