Effect of substrate levels and polyphenol oxidase activity on darkening in sweet potato cultivars

@article{Walter1980EffectOS,
  title={Effect of substrate levels and polyphenol oxidase activity on darkening in sweet potato cultivars},
  author={William M. Walter and Albert E. Purcell},
  journal={Journal of Agricultural and Food Chemistry},
  year={1980},
  volume={28},
  pages={941-944}
}