Limits...
In Vitro Lipophilic Antioxidant Capacity, Antidiabetic and Antibacterial Activity of Citrus Fruits Extracts from Aceh, Indonesia

View Article: PubMed Central - PubMed

ABSTRACT

This study reports in vitro lipophilic antioxidant, inhibition of α-amylase and antibacterial activities of extracts of peel and pulp of citrus samples from Aceh, Indonesia. HPLC (high-performance liquid chromatography), phytochemical, and FTIR (fourier transform infrared) analysis detected carotenoids, flavonoids, phenolic acids and terpenoids, contributing to the biological potencies. Most peel and pulp extracts contained lutein and lower concentrations of zeaxanthin, α-carotene, β-carotene and β-cryptoxanthin. The extracts also contained flavanone glycosides (hesperidin, naringin and neohesperidin), flavonol (quercetin) and polymethoxylated flavones (sinensetin, tangeretin). L-TEAC (lipophilic trolox equivalent antioxidant capacity) test determined for peel extracts higher antioxidant capacity compared to pulp extracts. All extracts presented α-amylase inhibitory activity, pulp extracts showing stronger inhibitory activity compared to peel extracts. All extracts inhibited the growth of both gram (+) and gram (−) bacteria, with peel and pulp extracts of makin showing the strongest inhibitory activity. Therefore, local citrus species from Aceh are potential sources of beneficial compounds with possible health preventive effects.

No MeSH data available.


Related in: MedlinePlus

L-TEAC values (µmol α-TE/100 g) of 50% MeOH/THF extracts of peels and pulps of citrus samples. Values are expressed as mean ± SD (n = 3). Bars with different letters are significantly different (One Way ANOVA, Tukey HSD test, p < 0.05). Capital (A,B,C) and small (a,b,c) letters indicate the comparison done in its respective categories.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC5384174&req=5

antioxidants-06-00011-f004: L-TEAC values (µmol α-TE/100 g) of 50% MeOH/THF extracts of peels and pulps of citrus samples. Values are expressed as mean ± SD (n = 3). Bars with different letters are significantly different (One Way ANOVA, Tukey HSD test, p < 0.05). Capital (A,B,C) and small (a,b,c) letters indicate the comparison done in its respective categories.

Mentions: L-TEAC antioxidant capacity test (Figure 4) showed that the peels had higher antioxidant capacity compared to the pulps. L-TEAC values of peels varied from 18.8 ± 2.0 to 42.7 ± 3.4 µmol α-TE/100 g. The peel of kruet mameh showed the highest antioxidant capacity, followed by the peels of calung and makin, but there was no significant difference among these three samples. Peel of jeruk nipis (18.8 ± 2.0 µmol α-TE/100 g) showed the lowest antioxidant capacity. For pulp extracts, makin showed the highest antioxidant capacity (19.5 ± 1.2 µmol α-TE/100 g), followed by the pulps of calung and jeruk nipis (10.7 ± 0.3 and 10.6 ± 0.0 µmol α-TE/100 g).


In Vitro Lipophilic Antioxidant Capacity, Antidiabetic and Antibacterial Activity of Citrus Fruits Extracts from Aceh, Indonesia
L-TEAC values (µmol α-TE/100 g) of 50% MeOH/THF extracts of peels and pulps of citrus samples. Values are expressed as mean ± SD (n = 3). Bars with different letters are significantly different (One Way ANOVA, Tukey HSD test, p < 0.05). Capital (A,B,C) and small (a,b,c) letters indicate the comparison done in its respective categories.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC5384174&req=5

antioxidants-06-00011-f004: L-TEAC values (µmol α-TE/100 g) of 50% MeOH/THF extracts of peels and pulps of citrus samples. Values are expressed as mean ± SD (n = 3). Bars with different letters are significantly different (One Way ANOVA, Tukey HSD test, p < 0.05). Capital (A,B,C) and small (a,b,c) letters indicate the comparison done in its respective categories.
Mentions: L-TEAC antioxidant capacity test (Figure 4) showed that the peels had higher antioxidant capacity compared to the pulps. L-TEAC values of peels varied from 18.8 ± 2.0 to 42.7 ± 3.4 µmol α-TE/100 g. The peel of kruet mameh showed the highest antioxidant capacity, followed by the peels of calung and makin, but there was no significant difference among these three samples. Peel of jeruk nipis (18.8 ± 2.0 µmol α-TE/100 g) showed the lowest antioxidant capacity. For pulp extracts, makin showed the highest antioxidant capacity (19.5 ± 1.2 µmol α-TE/100 g), followed by the pulps of calung and jeruk nipis (10.7 ± 0.3 and 10.6 ± 0.0 µmol α-TE/100 g).

View Article: PubMed Central - PubMed

ABSTRACT

This study reports in vitro lipophilic antioxidant, inhibition of &alpha;-amylase and antibacterial activities of extracts of peel and pulp of citrus samples from Aceh, Indonesia. HPLC (high-performance liquid chromatography), phytochemical, and FTIR (fourier transform infrared) analysis detected carotenoids, flavonoids, phenolic acids and terpenoids, contributing to the biological potencies. Most peel and pulp extracts contained lutein and lower concentrations of zeaxanthin, &alpha;-carotene, &beta;-carotene and &beta;-cryptoxanthin. The extracts also contained flavanone glycosides (hesperidin, naringin and neohesperidin), flavonol (quercetin) and polymethoxylated flavones (sinensetin, tangeretin). L-TEAC (lipophilic trolox equivalent antioxidant capacity) test determined for peel extracts higher antioxidant capacity compared to pulp extracts. All extracts presented &alpha;-amylase inhibitory activity, pulp extracts showing stronger inhibitory activity compared to peel extracts. All extracts inhibited the growth of both gram (+) and gram (&minus;) bacteria, with peel and pulp extracts of makin showing the strongest inhibitory activity. Therefore, local citrus species from Aceh are potential sources of beneficial compounds with possible health preventive effects.

No MeSH data available.


Related in: MedlinePlus