Protein: Perbedaan antara revisi

Jumlah kandungan nitrogen dari bahan organik terutama dibentuk oleh gugus amino dalam protein. Total Kjeldahl Nitrogen ([[Metode Kjeldahl|TKN]]) adalah ukuran nitrogen yang banyak digunakan dalam analisis air (limbah), tanah, makanan, pakan, dan bahan organik secara umum. Seperti namanya, [[metode Kjeldahl]] diterapkan untuk menganalisisnya. Meskipun demikian, metode lain yang lebih sensitif juga tersedia.<ref>[{{Cite web |url=https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3812630/ |title=Muñoz-Huerta et al. (2013) A Review of Methods for Sensing the Nitrogen Status in Plants: Advantages, Disadvantages and Recent Advances] |access-date=2020-12-14 |archive-date=2020-12-31 |archive-url=https://web.archive.org/web/20201231225351/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3812630/ |dead-url=no }}</ref><ref>[{{Cite web |url=https://cdnsciencepub.com/doi/pdf/10.4141/S01-054 |title=Martin et al. (2002) Determination of soil organic carbon and nitrogen at thefield level using near-infrared spectroscopy] |access-date=2020-12-14 |archive-date=2020-11-05 |archive-url=https://web.archive.org/web/20201105144524/https://cdnsciencepub.com/doi/pdf/10.4141/S01-054 |dead-url=no }}</ref>