Some research has suggested that compound specific fatty acids may be used as tracers of soil erosion. My question is whether or not different plant species generate fatty acids with different environmental persistence due to subtly different molecular structures? Specifically, are the fatty acids derived from pine trees more or less biodegradable than the fatty acids derived from elm, ash, or poplar trees. Any, information of the biodegradability of fatty acids by plant species would be very helpful. Thanks in advance.
Yes, the biodegradability of fatty acids can vary by plant species, as different plants produce different types and compositions of fatty acids. Fatty acids are carboxylic acids with long aliphatic chains, which can be either saturated or unsaturated. In general, the biodegradability of a fatty acid depends on its molecular structure, the length of its carbon chain, and the presence of double bonds.
Saturated fatty acids, which contain only single bonds between carbon atoms, typically have a slower rate of biodegradation compared to unsaturated fatty acids, which contain one or more double bonds. The presence of double bonds in unsaturated fatty acids can make them more susceptible to chemical reactions and microbial degradation.
Moreover, the length of the carbon chain can also affect biodegradability. Short-chain fatty acids (containing fewer than 6 carbon atoms) are more soluble in water and, therefore, more accessible to microorganisms. As a result, they are generally more biodegradable than long-chain fatty acids (containing 12 or more carbon atoms).
Different plant species produce varying compositions of fatty acids in their seeds, fruits, and other tissues. For example, the fatty acids in olive oil (mainly oleic acid, an unsaturated fatty acid) are different from those found in coconut oil (mainly lauric acid, a saturated fatty acid). As a result, the biodegradability of fatty acids can vary between plant species due to differences in their fatty acid profiles.
However, it is important to note that the biodegradability of fatty acids in the environment is not solely determined by their molecular structure. Environmental factors such as temperature, pH, and the presence of other organic and inorganic compounds can also influence the rate and extent of biodegradation.
Marwan Hany
Wrong - it varies by the chemical structure - not the plant. The llant may offer different fatty acids.
Please elaborate re. actual fatty acids from plants - not speculation.
In what context are you asking - seeds? pine nuts? cones? needles? and versus what other plants.
Hi Phil, i was intrigued if say eucalyptus produced fatty acids that are less degradable due to terpenes or other oils. Such oils are used as biocides. I was wondering if fatty acids derived from such oils are more resistant to degradation? Further, i was anticipating that the synthesis of fatty acids in natural systems would be associated with significant heterogeneity in terms of molecular structures?
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