## 2 Results and Discussion  
### Physicochemical Parameter Data  
Results for titratable acidity (TA), pH, total soluble solids (TSS), maturity index (MI) and total phenolic content (TPC) are given in Table 1.  
TA ranged between 0.21 for the Skeena cultivar to 0.28 g malic acid/100 g FW for the Canada giant cultivar. Significant differences (\(p<0.05\)) were observed between both Lapins/Skeena and Ferrovia/Canada giant cultivars. Differences in TA between cherry cultivars have been previously reported among Picota type and Sweetheart cultivars [3] and between Ambrunes and Pico Colorado cultivars [10]. The pH ranged from 3.81 for the Ferrovia cultivar to 3.96 for the Lapins cultivar. Significant differences (\(p<0.05\)) in pH were observed between both Canada giant/Skeena and Lapins, Ferrovia cultivars. [PERSON] _et al._[3] reported cherry pH values between 3.76 and 4.36 while [PERSON] _et al._[10] reported pH values between 4.15 and 4.29 for above mentioned sweet cherry cultivars. Likewise, [PERSON] _et al._[14] and [PERSON] _et al._[15] reported pH values between 4.07 and 4.09 and between 4.04 and 4.08 for Brazilian and Chinese sweet cherries, respectively. TSS ranged between 13.00 \({}^{\circ}\)Brix for the Lapins cultivar to 16.00 \({}^{\circ}\)Brix for the Ferrovia cultivar. Significant differences (\(p<0.05\)) in TSS were observed among all cultivars studied. [PERSON] _et al._[3] reported TSS values between 15 and 20 \({}^{\circ}\)Brix for three Picota type and Sweetheart cultivars while \begin{table}
\begin{tabular}{c c c c c c} \hline \hline \multirow{2}{*}{**Cultivar**} & \multicolumn{2}{c}{**TA**} & \multirow{2}{*}{**pH**} & \multirow{2}{*}{**TSS (\({}^{\circ}\)Brix)**} & \multirow{2}{*}{**MI**} & \multicolumn{2}{c}{**TPC**} \\  & **(g malic acid/100 g FW)** & & & & **(mg GAE/100 g FW)** \\ \hline
**Canada giant** & \(0.28\pm 0.01\)\({}^{\text{b}}\) & \(3.91\pm 0.00\)\({}^{\text{b}}\) & \(14.50\pm 0.05\)\({}^{\text{b}}\) & 51.8 \({}^{\text{a}}\) & 95.14 \(\pm\) 3.64 \({}^{\text{a}}\) \\
**Lapins** & \(0.20\pm 0.00\)\({}^{\text{a}}\) & \(3.96\pm 0.01\)\({}^{\text{c}}\) & \(13.00\pm 0.03\)\({}^{\text{a}}\) & 65.0 \({}^{\text{c}}\) & 135.86 \(\pm\) 13.94 \({}^{\text{b}}\) \\
**Ferrovia** & \(0.27\pm 0.00\)\({}^{\text{b}}\) & \(3.81\pm 0.00\)\({}^{\text{a}}\) & \(16.00\pm 0.06\)\({}^{\text{d}}\) & 59.3 \({}^{\text{b}}\) & 124.63 \(\pm\) 0.62 \({}^{\text{b}}\) \\
**Skeena** & \(0.21\pm 0.01\)\({}^{\text{a}}\) & \(3.91\pm 0.00\)\({}^{\text{b}}\) & \(15.75\pm 0.01\)\({}^{\text{c}}\) & 75.0 \({}^{\text{d}}\) & 170.35 \(\pm\) 3.52 \({}^{\text{a}}\) \\ \hline \hline \multicolumn{6}{l}{\({}^{\text{a}}\)-d different lower case letters in a given column indicate significant differences (\(p<0.05\)) as observed by [PERSON]’s multiple comparison tests.} \\ \end{tabular}
\end{table} 
Table 1: Physicochemical parameter data of four sweet cherry cultivars. [PERSON] _et al._[10] reported even higher TSS values between 19.5 and 21.4 \({}^{\circ}\)Brix for Ambrunes and Pico Colorado cherry cultivars. Likewise [PERSON] _et al._[14] and [PERSON] _et al._[15] reported TSS values 18.09 to 19.27 and 17.77 to 19.77 \({}^{\circ}\)Brix for Brazilian and Chinese sweet cherries, respectively. [PERSON] _et al._[2] suggested a TSS value above 14 \({}^{\circ}\)Brix for cherries to be acceptable for marketing. In the present study the Lapins cultivar had a TSS of 13 \({}^{\circ}\)Brix, below the above suggested limit. TSS values were also in general agreement with those of [PERSON] _et al._[3], [PERSON] [16] and [PERSON] _et al._[17]. The maturity index (MI = TSS/TA) ranged from 51.8 for the Canada giant cultivar to 75.0 for the Skeena cultivar. Significant differences (\(p<0.05\)) were observed among all four cultivars studied. These values are substantially higher than those of [PERSON] _et al._[3], [PERSON] _et al._[10] and [PERSON] _et al._[14]. Such differences in MI may be related to differences in maturity during fruit collection.