2.8. Microbiological countsAbout 25 g of petioles sticks were suspended in 225 mL of sterilepeptone water during 10 min to ensure the extraction of surface microorganisms. Peptone water dilutions were plated in potato sucroseagar (PSA) medium and yeast glucose chloramphenicol (YGC) and incubated at 36 °C for 72 h and at 25 °C during 48 h for mesophilic bacteria and molds and yeasts, respectively. Results were expressed as logCFU g−1.