Fruits of seven citrus cultivars of “kaffir lime or
ma-krut” (Citrus hystrix DC.), “lime or ma-nao” (Citrus
aurantifolia Swingle), “round kumquat or som-jeed” (Citrus
japonica Thunb), “neck-orange or som-juk” (Citrus reticulate
Blanco), “chugun” (Citrus reticulate cv. Chugun),
“pomelo” (Citrus maxima Merr.) and “acidless orange or
som-tra or som-cheng” (Citrus paradisi) were collected at
the mature stage from fruit orchards around Songkhla area
during May to July, 2005.