Hi,
Looking at validation of CCP - reduction of Hep A virus in berries. The berries end up in the ice cream mix. Anyone have any good journal.articles to share? Heat treatment of berries to kill virus? I found some but you had to pay
Hi AJL,
What level is yr "hoped for" heat treatment (eg quality tolerable)? eg -
https://www.foodsafe...wing-illnesses/
(2022)
https://www.mpi.govt...es-safe-to-eat/
https://www.mpi.govt...frozen-berries/
Hepatitis-A-Datasheet-Final.pdf 203.19KB
9 downloads
Thermal Inactivation of HAV and Human Norovirus in Clams.pdf 170.63KB
5 downloads
Methods to Inactivate Hepatitis A in Foods.pdf 180.2KB
7 downloads
NZ,2022,HAV-imported frozen Berries.pdf 163.96KB
6 downloads
Codex Comment (2012)
• Heat treatment: The effects of heat treatment on virus infectivity in foods are highly dependent on virus (sub)-type, food matrix and the initial level of viral contaminants. Cooking procedures in which an internal temperature of the food reaches at least 90 °C for 90 seconds are considered adequate treatments to destroy viral infectivity in most foods. However, light cooking, e.g., steaming, searing, may not be adequate to inactivate viral infectivity leading to unsafe foods. Conventional pasteurization (e.g. 63 °C for 30 min or 70 °C for 2 min) is more effective than High Temperature Short Time (HTST; 72 °C for 15–20 seconds) pasteurization, and likely yields at least a 3 log10 inactivation of NoV. However, given the potential for contamination with millions of viral particles and an infectious dose as low as a few viral particles, even conventional pasteurization may not adequately inactivate NoV in a contaminated food. Commercial canning is considered an adequate treatment to destroy viral infectivity in foods.
(GUIDELINES ON THE APPLICATION OF GENERAL PRINCIPLES OF FOOD HYGIENE TO THE CONTROL OF VIRUSES IN FOOD)
CXG_079e.pdf 233.37KB
6 downloads
On the other hand -
Norovirus and HAV in berries.pdf 350.14KB
6 downloads
Take yr Pick or, (more likely), seek further opinions/context as to Risk for specific situation. Offhand, USA seems (to me) "fairly" concerned about "berries" with some detections having occurred -
https://www.fda.gov/...erries-may-2022
https://www.healthli...ws/berry-recall
https://www.cdc.gov/...rries/index.htm