The retention of both ascorbic acid and anthocyanin content was noticeably increased by 46– 57% and 34–37% compared to untreated and by around 25– 27% and 21–31% relative to Ca lactate treatments and by around 21–37% and 3–8% for 0.04% citric acid treatment, respectively. In a study on improving quality of home frozen strawberries, Hudson et al. (1975) added calcium lactate, ascorbic acid, citric acid and tartaric acid alone or in combination to a 60 (w/V) sugar syrup held in storage for up to 3 months. Citric acid gave the best color and overall rating whereas calcium lactate and ascorbic acid improved firmness, suggesting that combinations might be best (see Fig. 2).