Abstract
Examination of the above resins has revealed the presence apart from polymeric material of a number of hydroxy- and methoxy-flavanone derivatives, some derivatives of 2-methyl-2,3-dihydronaphtho-[1,8-bc]pyran-5-ol (1), C6C3 derivatives such as cinnamyl alcohol and p -coumaric acid, and chrysophanic acid. The inflorescence of X. australis contains no flavonoids, but p -coumaric acid, chryso- phanic acid and aloeemodin. Two dimeric flavonoids are isolable from X. preissii . Reported occurrences of compounds in all Xanthorrhoea resins are summarized and some of the implications discussed. The 'red' and 'yellow' resins differ markedly; X. hastile contains no naphthopyran derivatives and the resin is chiefly a polymer. Despite the large number of compounds reported (Table 1) only a small proportion of the resins has been accounted for as isolated pure substances.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 6
Claim · model-written summary
The resins contained hydroxy- and methoxy-flavanones, naphthopyran derivatives, C6C3 derivatives and chrysophanic acid.
- Taxon
- Xanthorrhoea
Xanthorrhoeat0 - Outcome
- hydroxy- and methoxy-flavanone derivativese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“resins has revealed the presence apart from polymeric material of a number of hydroxy- and methoxy-flavanone derivatives, some derivatives of 2-methyl-2,3-dihydronaphtho-[1,8-bc]pyran-5-ol (1), C6C3 derivatives such as cinnamyl alcohol and p -coumaric acid, and chrysophanic acid”
t0“Xanthorrhoea”
Claim · model-written summary
X. australis inflorescences contained no flavonoids.
- Taxon
- X. australis
.JPG?width=60)
Xanthorrhoea australise0 - Organ / stage
- inflorescencee0
- Outcome
- no flavonoidse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.JPG?width=500)
Verbatim
e0“The inflorescence of X. australis contains no flavonoids”
t0“Xanthorrhoea”
Claim · model-written summary
X. australis inflorescences contained p-coumaric acid, chrysophanic acid and aloeemodin.
- Taxon
- X. australisXanthorrhoea australise0
- Organ / stage
- inflorescencee0
- Outcome
- p -coumaric acid, chryso- phanic acid and aloeemodine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The inflorescence of X. australis contains no flavonoids, but p -coumaric acid, chryso- phanic acid and aloeemodin”
Claim · model-written summary
Two dimeric flavonoids were isolated from X. preissii.
- Taxon
- X. preissii
Xanthorrhoea preissiie0 - Outcome
- dimeric flavonoidse0
- Value
- Twoe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two dimeric flavonoids are isolable from X. preissii”
Claim · model-written summary
Red and yellow resins differed markedly.
- Taxon
- XanthorrhoeaXanthorrhoeat0
- Outcome
- 'red' and 'yellow' resins differ markedlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 'red' and 'yellow' resins differ markedly”
t0“Xanthorrhoea”
Claim · model-written summary
X. hastile resin contained no naphthopyran derivatives and was chiefly polymeric.
Verbatim
e0“X. hastile contains no naphthopyran derivatives and the resin is chiefly a polymer”