2. Variation among species and cultivars
While there have been many studies on the AA content of fruits and vegetables, relatively few have been reported on the content of the two forms of vitamin C, AA and DHA. The wide variation in the content of AA and DHA among
different species of fruits and vegetables are shown in Tables 1 and 2, respectively. Persim- mons and peppers show the highest amount of vitamin C among their groups. In general crucif-
erous vegetables contain higher content of AA and sulfur compounds than non-cruciferous veg- etables. Total sulfur content correlated well with the AA content of vegetables (Albrecht et al.,