I still burp the flavor for hours...
Oh dear, that's why I avoid bell peppers. Horrible taste burped for hours. Maybe try perilla to see if that works ... and tastes less awful?
From
https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/cuminaldehyde
Cumin seeds yield 2.3–4.8% volatile oil. The oil is yellow amber liquid that tends to darken on ageing. The characteristic odour of
cumin is mainly due to the aldehydes present in the seeds namely, cuminaldehyde, p-menth-3-en-7-al and p-menth-1,3-dien-7-al. (Agrawal 2001). Indian cumin oil is reported to be lower in cuminaldehyde content. Turkish cumin
seed oil was reported to have cuminaldehyde (19.2%), p-mentha-1,3-dien-7-al (4.2–12.2%), p-mentha-1,4-dien-7-al (24–48%), γ-terpinene (7.0–14.1%), p-cymene (9.1–12.0%) and
β-pinene (2.9–8.9%) as major constituents (Baser
et al. 1992). Shaath and Azzo (1993) reported 25.01% cuminaldehyde in the cumin seed oil of Egyptian origin (Table 11.12). Pande and Goswami (2000) identified 12 constituents contributing to 86.4% of the oil of which the chief components were cuminaldehyde (32.6%), p-cymene (14.7%), p-mentha-1,4-dien-7-al (13.5%) and β-pinene (12.7%).
Table 11.12. Chemical composition of cumin seed oil of Egyptian origin
Compound Percentage content α-Thujene (0.28%)Terpinolene (0.11%)α-Pinene (0.78%)Terpinen-4-ol (0.16%)Camphene (trace)p-menth-3-en-7-al (3.83%)Sabinene (0.40%)α-terpineol (0.05%)β-Pinene (14.64%)Cuminaldehyde (25.01%)Myrcene (0.92%)p-mentha-1,4,dien-7-al (17.36%)α-Phellandrene (0.63%)p-mentha-1,3,dien-7-al (5.84%)p-Cymene (4.91%)β-caryophyllene (0.20%)β-Phellandrene (0.30%)
Trans-α-bergamotene (0.31%)limonene (0.37%)γ-Terpinene (19.12%)
I assumed that it was the cuminaldehyde responsible, but didn't prove it with a pure sample. Pure cuminadehyde is available from perfume suppliers. Expensive, but if it did block your PEM effectively without unpleasant side-effects, maybe it would be worth keeping around for special occasions.