Science, asked by piyushgen, 8 months ago

application of food preservatives in our daily life class 8

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ғᴏᴏᴅ ᴘʀᴇsᴇʀᴠᴀᴛɪᴠᴇs: ᴛʜᴇsᴇ ᴀʀᴇ sᴜʙsᴛᴀɴᴄᴇs, ᴡʜᴇɴ ᴀᴅᴅᴇᴅ ᴛᴏ ғᴏᴏᴅ, ᴀʀᴇ ᴄᴀᴘᴀʙʟᴇ ᴏғ ɪɴʜɪʙɪᴛɪɴɢ, ʀᴇᴛᴀʀᴅɪɴɢ ᴏʀ ᴀʀʀᴇsᴛɪɴɢ, ᴛʜᴇ ᴘʀᴏᴄᴇss ᴏғ ғᴇʀᴍᴇɴᴛᴀᴛɪᴏɴ, ᴀᴄɪᴅɪғɪᴄᴀᴛɪᴏɴ ᴏʀ ᴏᴛʜᴇʀ ᴅᴇᴄᴏᴍᴘᴏsɪᴛɪᴏɴ ᴏғ ғᴏᴏᴅ ʙʏ ɢʀᴏᴡᴛʜ ᴏғ ᴍɪᴄʀᴏʙᴇs. ᴇxᴀᴍᴘʟᴇs ɪɴᴄʟᴜᴅᴇ sᴀʟᴛ, sᴜɢᴀʀ, ᴠɪɴᴇɢᴀʀ, sᴏᴅɪᴜᴍ ʙᴇɴᴢᴏᴀᴛᴇ, sᴀʟᴛs ᴏғ sᴏʀʙɪᴄ ᴀᴄɪᴅ ᴀɴᴅ ᴘʀᴏᴘɪᴏɴɪᴄ ᴀᴄɪᴅ ᴇᴛᴄ

ᴛʜᴇ ᴘʀᴏᴄᴇss ᴏғ ᴛʀᴇᴀᴛɪɴɢ ғᴏᴏᴅ ɪɴ ᴏʀᴅᴇʀ ᴛᴏ sʟᴏᴡ ᴅᴏᴡɴ sᴘᴏɪʟᴀɢᴇ ɪs ᴄᴀʟʟᴇᴅ ᴀs ғᴏᴏᴅ ᴘʀᴇsᴇʀᴠᴀᴛɪᴏɴ. ᴀ) ᴄʜᴇᴍɪᴄᴀʟ ᴍᴇᴛʜᴏᴅ ᴏғ ᴘʀᴇsᴇʀᴠᴀᴛɪᴏɴ ɪs ᴅᴏɴᴇ ʙʏ ᴀᴅᴅɪɴɢ ᴄᴇʀᴛᴀɪɴ ᴄʜᴇᴍɪᴄᴀʟs ᴡʜɪᴄʜ ʜᴀᴠᴇ ᴛʜᴇ ᴄᴀᴘᴀʙɪʟɪᴛʏ ᴏғ ᴘʀᴇsᴇʀᴠɪɴɢ ᴛʜᴇ ғᴏᴏᴅ. ᴘʀᴇsᴇʀᴠᴀᴛɪᴠᴇs ɪɴᴄʟᴜᴅᴇ sᴏᴅɪᴜᴍ ʙᴇɴᴢᴏᴀᴛᴇ ᴀɴᴅ sᴏᴅɪᴜᴍ ᴍᴇᴛᴀʙɪsᴜʟᴘʜɪᴛᴇ ᴜsᴇᴅ ɪɴ ᴊᴀᴍs ᴀɴᴅ sϙᴜᴀsʜᴇs.

ᴀɴ ᴜɴᴅᴇsɪʀᴀʙʟᴇ ᴄʜᴀɴɢᴇ ɪɴ ᴄᴏʟᴏᴜʀ, ᴏᴅᴏᴜʀ ᴀɴᴅ ᴛᴀsᴛᴇ ɪɴ ғᴏᴏᴅ ʙʀᴏᴜɢʜᴛ ᴀʙᴏᴜᴛ ʙʏ ᴍɪᴄʀᴏᴏʀɢᴀɴɪsᴍs ɪs ᴄᴀʟʟᴇᴅ ᴀs ғᴏᴏᴅ ᴘᴏɪsᴏɴɪɴɢ. ғᴏᴏᴅ ᴘᴏɪsᴏɴɪɴɢ ᴍᴀʏ ᴄᴀᴜsᴇ ɪɴғᴇᴄᴛɪᴏɴ, sᴇʀɪᴏᴜs ɪʟʟɴᴇss ᴀɴᴅ ᴇᴠᴇɴ ᴅᴇᴀᴛʜ. ғᴏᴏᴅ ʜᴀs ᴛᴏ ʙᴇ ᴘʀᴇsᴇʀᴠᴇᴅ ɪɴ ᴏʀᴅᴇʀ ᴛᴏ ᴘʀᴇᴠᴇɴᴛ ɪᴛ ғʀᴏᴍ ʙᴇɪɴɢ ᴄᴏɴᴛᴀᴍɪɴᴀᴛᴇᴅ ʙʏ ᴍɪᴄʀᴏᴏʀɢᴀɴɪsᴍs.

ᴍᴇᴛʜᴏᴅs ᴏғ ғᴏᴏᴅ ᴘʀᴇsᴇʀᴠᴀᴛɪᴏɴ

ᴀ) ᴄʜᴇᴍɪᴄᴀʟ ᴍᴇᴛʜᴏᴅ ᴏғ ᴘʀᴇsᴇʀᴠᴀᴛɪᴏɴ ɪs ᴅᴏɴᴇ ʙʏ ᴀᴅᴅɪɴɢ ᴄᴇʀᴛᴀɪɴ ᴄʜᴇᴍɪᴄᴀʟs ᴡʜɪᴄʜ ʜᴀᴠᴇ ᴛʜᴇ ᴄᴀᴘᴀʙɪʟɪᴛʏ ᴏғ ᴘʀᴇsᴇʀᴠɪɴɢ ᴛʜᴇ ғᴏᴏᴅ. ᴘʀᴇsᴇʀᴠᴀᴛɪᴠᴇs ɪɴᴄʟᴜᴅᴇ sᴏᴅɪᴜᴍ ʙᴇɴᴢᴏᴀᴛᴇ ᴀɴᴅ sᴏᴅɪᴜᴍ ᴍᴇᴛᴀʙɪsᴜʟᴘʜɪᴛᴇ ᴜsᴇᴅ ɪɴ ᴊᴀᴍs ᴀɴᴅ sϙᴜᴀsʜᴇs.

ʙ) ᴘʀᴇsᴇʀᴠᴀᴛɪᴏɴ ʙʏ ᴠɪɴᴇɢᴀʀ ɪs ᴅᴏɴᴇ ʙʏ ᴀᴅᴅɪɴɢ ᴠɪɴᴇɢᴀʀ ᴀs ᴍɪᴄʀᴏᴏʀɢᴀɴɪsᴍs ᴄᴀɴɴᴏᴛ ʟɪᴠᴇ ɪɴ sᴏᴜʀ ᴇɴᴠɪʀᴏɴᴍᴇɴᴛ ᴘʀᴏᴠɪᴅᴇᴅ ʙʏ ᴛʜᴇ sᴀᴍᴇ.

ᴄ) ᴘʀᴇsᴇʀᴠᴀᴛɪᴏɴ ʙʏ sᴜɢᴀʀ ɪs ᴅᴏɴᴇ ʙʏ ᴀᴅᴅɪɴɢ sᴜɢᴀʀ ᴡʜɪᴄʜ ʀᴇᴅᴜᴄᴇs ᴍᴏɪsᴛᴜʀᴇ ɪɴ ғᴏᴏᴅ. ɪᴛ ᴀʟsᴏ ɪɴʜɪʙɪᴛs ᴛʜᴇ ɢʀᴏᴡᴛʜ ᴏғ ᴍɪᴄʀᴏʙᴇs ᴛʜᴀᴛ sᴘᴏɪʟ ғᴏᴏᴅ. ᴊᴀᴍs, ᴊᴇʟʟɪᴇs ᴀɴᴅ sϙᴜᴀsʜᴇs ᴀʀᴇ ᴘʀᴇsᴇʀᴠᴇᴅ ᴜsɪɴɢ sᴜɢᴀʀ.

ᴅ) ᴘʀᴇsᴇʀᴠᴀᴛɪᴏɴ ʙʏ ᴏɪʟ ɪs ᴅᴏɴᴇ ʙʏ ᴀᴅᴅɪɴɢ ᴏɪʟ, ᴀs ʙᴀᴄᴛᴇʀɪᴀ ᴀɴᴅ ғᴜɴɢɪ ᴄᴀɴɴᴏᴛ ʟɪᴠᴇ ɪɴ ᴀɴ ᴇɴᴠɪʀᴏɴᴍᴇɴᴛ ᴘʀᴏᴠɪᴅᴇᴅ ʙʏ ᴏɪʟ.

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application of food preservatives in our daily life class 8