Tannin

Tannins are bitter-tasting chemical compounds that bind proteins. Tannins are present in the following:

Tannins are also used in the treatment of leather, to make it more durable. Natural tannins for this purpose come from oak trees, but synthetic tannins are more used.

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v t e Non-timber forest products
Animal products	Furs Honey Pine honey Wild game
Berries Tree fruit	Banana Bilberry Binukaw Blackberry Blueberry Breadfruit Cocoa bean Coconut Durian Gambooge Huckleberry Jackfruit Juniper berry Lingonberry Raspberry Strawberry Tamarind Woodland strawberry
Edible plants / roots	Betel Fiddlehead ferns Heart of palm Mahuwa flowers Sago palm queen Sassafras filé powder root beer Saw palmetto Wild ginseng Wild onions Bear garlic Canada onion Crow garlic Twincrest onion Pacific mountain onion Ramps
Mushrooms	Bare-toothed russula Bay bolete Birch bolete Cep Chanterelle Honey mushroom Lingzhi Matsutake Meadow mushroom Morel Oyster mushroom Parasol mushroom Red cap Saffron milk cap Slippery jack Truffle Yellow knight
Nuts Spices	Allspice Areca nut Bay leaf Black pepper Brazil nut Cinnamon Clove Hazelnut Malva nut Nutmeg Pine nut Vanilla
Oil Waxes	Allanblackia Babassu Bacuri Candlenut Capuacu Carnauba Chaulmoogra (Hydnocarpus wightiana) Cocoa butter Eucalyptol Eucalyptus Illipe Japan wax Kokum Kombo Kpangnan Kusum Mafura Mahua Mango butter Murumuru Nagkesar Palm (kernel) Phulwara Pilu Pongamia Sal-seed (Shorea robusta) Sandalwood Shea butter Tamanu Tea-seed Tea-tree Tucuma Ucuuba Vateria indica
Resins	Benzoin Birch tar Camphor Creosote Frankincense Gamboge Kauri Lacquer Mastic Myrrh Pine tar Pitch Rosin Turpentine Varnish
Sap / Gum / etc.	Birch syrup Chicle chewing gum Coconut sugar Date sugar Fruit syrup Gum arabic Gutta-percha Kino Latex Maple sugar Maple syrup Palm sugar Palm wine akpeteshie ogogoro Rubber Spruce gum
Other	Amadou Bamboo edible musical instruments textiles Birch bark Birch beer Cork Ferns Forage Gambier Moss Natural dyes henna Peat Quinine Rattan Shellac Tanbark tannin Tendu leaves Thatching Vegetable ivory Willow bark

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Tannin

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