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(2020) Sugars in Carbonaceous Chondrites

Furukawa Y, Chikaraishi Y, Ohkouchi N, Ogawa N, Glavin D, Dworkin J, Abe C & Nakamura T


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01c: Plenary Hall, Thursday 25th June 05:36 - 05:39

Listed below are questions that have been submitted by the community that the author will try and cover in their presentation. To submit a question, ensure you are signed in to the website. Authors or session conveners approve questions before they are displayed here.

Submitted by My Riebe on Sunday 21st June 07:12
Can the formation of meteoritic sugars in formose-type processes give us any information about where they formed?
The formose-type reaction is possible in aqueous solutions, but it also be promoted photochemically. So, the "formose-type reaction" itself does not suggest the formation site.

Submitted by My Riebe on Sunday 21st June 07:13
How do the formation of SOM suggested by Nagahisa (previous presentation) and the formation of sugars suggested here relate?
The experiments shown in the preveous presentation is similar to the experiment we did as the formose-type reaction. So, sugars may be formed in some of their products. They showed the formation of bigger SOM than sugars. These products may be formed after the sugar formation in the formose-type reactions.

Submitted by Aki Takigawa on Thursday 25th June 02:10
What does it mean that the arabinose was detected in Murchison but not in NWA 801?
Arabinose was detected from NWA801. However, its carbon isotope ratio is not shown here due to its insufficient reliability related to a poor peak separation.

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