Correction: Food Production, Processing and Nutrition 2, 7 (2020)

https://doi.org/10.1186/s43014-020-00021-1

Following publication of the original article (Song et al. 2020), the authors realised the Fig. 1 was not very clear. The clear figure is given below.

Fig. 1
figure 1

Score and loading plots of effect of exogenous spermine on metabolite profiles of cold-stored immature vegetable soybeans