@article{oai:obihiro.repo.nii.ac.jp:00001806,
 author = {Hironaka, Kazunori and 弘中, 和憲 and Shimizu, Akira and Koaze, Hiroshi and 小疇, 浩 and Yamamoto, Kazuo and Sato, Tadatoshi and Kojima, Michiyuki and 小嶋, 道之 and Mori, Motoyuki and Tsuda, Shogo},
 journal = {帯広畜産大学学術研究報告, Research bulletin of Obihiro University},
 month = {Dec},
 note = {application/pdf, The pH, polyphenol content and polyphenol oxidase (PPO) activity in stem end, middle, and bud end of Norin No. 1 potatoes, one of processing varieties in Japan, were measured to investigate their respective distributions. The stem end area had a higher pH and PPO activity in the three areas. This result points out that careful harvesting and postharvest handling are needed especially at the stem end area of potatoes because of its high PPO activity.},
 pages = {18--23},
 title = {Unequal distribution of pH, polyphenol content and polyphenol oxidase activity within Japanese processing potato tubers},
 volume = {29},
 year = {2008}
}