Excerpt:
DURING recent years, the quality and availability of the traditional metal container used for retail sale of pure maple sirup has declined, encouraging the use of plastic containers for this purpose. Two types are currently in commercial use. Reports from the maple industry suggest that maple sirup darkens while stored in these containers. Responding to the need for more definite information on color stability of maple sirup stored in containers of different materials, this paper reports the results of a study of color stability of maple sirup in four types of containers stored at three temperatures.
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