Hi Umer, there is not pig fat in E270. Text below is from Livsmedelsverket's web.
E270 - Lactic acid additive group Preservatives
Description An organic acid formed from lactose by the action of lactic acid bacteria. The acid occurs widely in nature and it is also formed naturally in humans. It is produced from carbohydrates by lactic acid bacteria or chemically. It is also used as an acidity regulator and to impart flavour. The salts of lactic acid are called lactates (E325 - 327). Its preservative effect is mainly based on lowering the pH. May be used in almost all foods that may contain additives. Quantity restrictions only in nectars.
there is not pig fat in E270. Text below is from Livsmedelsverket's web.
E270 - Lactic acid
additive group
Preservatives
Description
An organic acid formed from lactose by the action of lactic acid bacteria. The acid occurs widely in nature and it is also formed naturally in humans. It is produced from carbohydrates by lactic acid bacteria or chemically. It is also used as an acidity regulator and to impart flavour. The salts of lactic acid are called lactates (E325 - 327). Its preservative effect is mainly based on lowering the pH. May be used in almost all foods that may contain additives. Quantity restrictions only in nectars.
Hope this answers your question.