Yes of course. The asymptotic slope of ln(MR) vs t of a long cylinder shaped food product during a mass transfer process is,
k=-(a12Deff)/r2 where a1 is the first root of J0(a1)=0 and J0 is the Bessel function of first kind and order zero.
You can consult a deep discussion in the paper,
Vargas-González, S., Pacheco-Aguirre1, F.M., López-Sánchez, E., Carrillo-Ahumada, J., Ruiz-López, I.I., García-Alvarado, M.A. (2017). Analytical solutions of conduction/diffusion equation in media contacting a finite volume solution and their topological relations. Revista Mexicana de Ingeniería Química, 16(3), 911-922.
It is open access, but I can send to you by the requirement papers system of Research Gate. The Journal is Mexican (JCR) and the paper is in English.