# VITAMIN B3 ### Andriana Videc #### Odjel za biotehnologiju, Kolegij: informatika #### 30.06.2023. --- **_Vitamin_** **_B3_** je naziv za skupinu spojeva koji su važni za proizvodnju energije, metabolizam masti i sintezu nukleinskih kiselina. Formula: $C_6H_5NO_2$ --> $C_5H_4NCOOH$ ---   --- Javlja se u dva oblika: 1. *nikotinska kiselina* (piridin-3-karboksilna kiselina) 2. *nikotinamid* (piridin-3-karboksamid) --- ### **Izvori vitamina B3** |biljni|životinjski|ostalo| |:---:|:---:|:---:| |mahunarke|piletina|kikiriki| |rajčica|riba|suncokretove sjemenke| |avokado|mlijeko|orašasti plodovi| --- Funkcije vitamina B3: - proizvodnja energije - sudjeluje u metabolizmu rasta - sinteza nukelinskih kiselina i regulacija enzima - regulacija inzulina - prekursor u sintezi NAD+ i NADP+ --- ### Nikotinamid ```mermaid flowchart TB; A[A] A --> B(B) A --> C(C) B --> D{D} B --> E{E} C --> F{F} C --> G{G} C --> H{H} ``` ##### Legenda: A=nkotinamid, B=prijenos elektrona, C=kozmetika, D= glikoliza, E=fotoglukonatni put, F=akne, G=pore, H=hiperpigmentacija --- <img src="https://i0.wp.com/beaudy.vn/wp-content/uploads/2022/03/vitamin-b3-co-tac-dung-gi-e10e0341.jpg?resize=749%2C499&ssl=1" title="kozmetika" width=550 height=350 align="left">  ---- #### [Izvor 1](https://i0.wp.com/beaudy.vn/wp-content/uploads/2022/03/vitamin-b3-co-tac-dung-gi-e10e0341.jpg?resize=749%2C499&ssl=1): https://i0.wp.com/beaudy.vn/wp-content/uploads/2022/03/vitamin-b3-co-tac-dung-gi-e10e0341.jpg?resize=749%2C499&ssl=1 #### [Izvor 2](https://upload.wikimedia.org/wikipedia/commons/thumb/b/b5/NAD_oxidation_reduction.svg/375px-NAD_oxidation_reduction.svg.png) :https://upload.wikimedia.org/wikipedia/commons/thumb/b/b5/NAD_oxidation_reduction.svg/375px-NAD_oxidation_reduction.svg.png --- ```mermaid pie title Manjak nikotinamida uzrokuje: "Umor": 60 "Povraćanje": 35 "Slabu cirkulaciju": 15 "Depresiju": 5 ``` [Link stranice](https://www.futunatura.hr/niacin-vitamin-B3 "Futuranatura") --- ##### Vitamin B3 - avogadro  --- ##### Vitamin B3 - PyMol