Abstract: The present disclosure provides a gene combination for expressing and producing terrequinone A in Escherichia coli and use thereof. The gene combination includes a tdiAS gene, a tdiBS gene, a tdiCS gene, a tdiDS gene, a tdiES gene, an sfpS gene, an ScCKS gene, and an AtIPKS gene with nucleotide sequences set forth in SEQ ID NOS:1 to 8. In the present disclosure, a recombinant engineered strain capable of producing terrequinone A having anti-cancer activity is obtained by separately constructing recombinant plasmids pC02 and pU03 through the eight genes and transforming the two recombinant plasmids into E. coli. The content of terrequinone A in a fermentation broth thereof is 106.3 mg/L, which has potential application value in the biopharmaceutical field.

Abstract: The invention provides a process for reducing odour, bitterness, astringency and pungency of a Simmondsins extract by dissolving the Simmondsins extract in a solvent if the Simmondsins extract is in a dry form, reacting the liquid Simmondsins extract with a carbonaceous adsorbent, such as activated carbon, to obtain a mixture, separating the adsorbent from the mixture to obtain a purified liquid extract, and drying the purified liquid extract.

Abstract: The invention provides a process for reducing odour, bitterness, astringency and pungency of a Simmondsins extract by dissolving the Simmondsins extract in a solvent if the Simmondsins extract is in a dry form, reacting the liquid Simmondsins extract with a carbonaceous adsorbent, such as activated carbon, to obtain a mixture, separating the adsorbent from the mixture to obtain a purified liquid extract, and drying the purified liquid extract.

Abstract: The invention provides a process for reducing odor, bitterness, astringency and pungency of a Simmondsins extract by dissolving the Simmondsins extract in a solvent if the Simmondsins extract is in a dry form, reacting the liquid Simmondsins extract with a carbonaceous adsorbent, such as activated carbon, to obtain a mixture, separating the adsorbent from the mixture to obtain a purified liquid extract, and drying the purified liquid extract.

Abstract: The invention provides a process for reducing odour, bitterness, astringency and pungency of a Simmondsins extract by dissolving the Simmondsins extract in a solvent if the Simmondsins extract is in a dry form, reacting the liquid Simmondsins extract with a carbonaceous adsorbent, such as activated carbon, to obtain a mixture, separating the adsorbent from the mixture to obtain a purified liquid extract, and drying the purified liquid extract.