Substance used for the preservation of coloured fruit juices is

Which one is used for the preservation of all kinds of coloured fruits juice?

Which of the following is used for the preservation of colourless food materials such as fruit juices , squashes ?

Which on of the following substance is used for preservation of food grains?

Which of the following is used for the preservation of coloured food materials such as fruit juices , squashes ?

An enzyme used for the clarifying bottled fruit juice.

Which of the following is mainly used for preservation of fruits like apple

_______ is the preservative of jams and fruit juice.

The colour producing substances used to impart green colour to glass is