Effect of Contact Time on the Level of Phthalates in Polyethylene Terephthalate-bottled Water from the Point of Sale

Pertanika Journal of Tropical Agricultural Science

article

Syaliza Omar¹  Selamat Jinap²  Ungku Zainal Abidin Ungku Fatimah⁴  Abdul Rasid Hazira²  Maimunah Sanny² 

[1] Faculty of Pharmacy, Universiti Sultan Zainal Abidin, Besut Campus;Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia;Laboratory of Food Safety and Food Integrity, Institute of Tropical Agriculture and Food Security, Universiti Putra Malaysia;Department of Food Service and Management, Faculty of Food Science and Technology, Universiti Putra Malaysia;Halal Products Research Institute, Universiti Putra Malaysia;Food Section, Public Health Laboratory Kota Kinabalu, Ministry of Health Malaysia

关键词: Contact time;    LC-MS/MS;    PET-bottled water;    phthalates;    point of sale;   

DOI  :  10.47836/pjtas.44.2.08

学科分类：农业科学（综合）

来源: Universiti Putra Malaysia, Universiti Pertanian Malaysia Press

【 摘 要 】

The study aimed to evaluate the effect of contact time on the level of phthalates in polyethylene terephthalate (PET)-bottled water commercially available on the market. Different water types (drinking water, mineral water, and sparkling water) in PET bottles and mineral water in glass bottles were collected. Control (before bottling) and freshly produced (0-month) samples were collected at manufacturing sites. In contrast, samples at 6, 12, and 18 months of contact times were collected randomly from hypermarkets and supermarkets in Klang Valley, Malaysia. The samples were analyzed using LC-MS/MS with deuterated DEHP as the internal standard. DEHP, DMP, DEP, DnOP, and BBP were not detected in drinking, mineral, and sparkling water in both PET and glass bottles. However, DBP was detected within the range of 0.68 to 1.11 ng/mL for mineral water and 0.55 to 0.59 ng/ mL for drinking water in PET bottles. All types of phthalates, including DBP, were not detected in the control and 0-month samples. DBP was detected at 0.59 ng/mL at 6 months of contact time and 0.55 ng/mL at 12 months of contact time in PET-bottled drinking water samples; the difference, however, was not significant. It appears that contact time did not significantly affect DBP levels.

【 授权许可】

Unknown