- 著者
- Makoto TAKAHASHI Yonathan ASIKIN Kensaku TAKARA Koji WADA
- 出版者
- (社)日本農芸化学会
- 雑誌
- Bioscience, Biotechnology, and Biochemistry (ISSN:09168451)
- 巻号頁・発行日
- vol.76, no.12, pp.2317-2320, 2012-12-23 (Released:2012-12-23)
- 参考文献数
- 14
- 被引用文献数
- 4
To identify plants with bioactive potential for skin care, methanol extracts of 56 plant parts from 47 medical and edible plants cultivated in Okinawa were tested for their proliferative effects on NB1RGB skin fibroblast cells. Extracts from six plants, Bischofia javanica, Colocasia esculenta, Melaleuca alternifolia, Piper angustifolia, Jasminum sambac, and Curcuma longa, showed higher NB1RGB cell proliferation activity (>10%) than the control, at various concentrations. Among the six extracts, only the C. longa extract caused an increase in collagen synthesis in NB1RGB cells, as compared to treatment with the positive control, ascorbic acid (AsA). Expression of the collagen synthesis marker, transforming growth factor-β1, was higher after treatment with the C. longa extract than with AsA.
- 著者
- Yonathan Asikin Tomomasa Kudaka Ryota Maekawa Takuya Kobayashi Makoto Takeuchi Masahiro Horiuchi Koji Wada
- 出版者
- Japanese Society for Food Science and Technology
- 雑誌
- Food Science and Technology Research (ISSN:13446606)
- 巻号頁・発行日
- pp.FSTR-D-23-00142, (Released:2023-11-28)
Pineapple is an important representative fruit of Okinawa Prefecture, Japan. The fruits of the five new breeding lines (“Okinawa No. 22,” “Okinawa No. 25,” “Okinawa No. 26,” “Okinawa No. 27,” and “Okinawa No. 28”) were evaluated for physicochemical traits, total carotenoids, volatile components, and orthonasal aroma profiles. The fruits had comparable weight, total soluble solids, and titratable acidity but displayed different color space b* values (yellow index). This yellow indicator was positively associated with total carotenoid content, with the “Okinawa No. 26” line having the most (8.74 mg/kg). The amount and composition of volatile components and, consequently, aroma-active compounds varied between fruits. The “Okinawa No. 28” line contained the most active-aroma compound methyl 2-methylbutanoate (odor activity value = 297.78). Except for “Okinawa No. 25,” the lines were associated with pleasant orthonasal aromas, such as fruity, sweet, coconut-like, and peach-like, indicating their potential use in fresh or processed foods.
- 著者
- Makoto Takahashi Dai Kitamoto Yonathan Asikin Kensaku Takara Koji Wada
- 出版者
- 公益社団法人 日本油化学会
- 雑誌
- Journal of Oleo Science (ISSN:13458957)
- 巻号頁・発行日
- vol.58, no.12, pp.643-650, 2009 (Released:2009-11-14)
- 参考文献数
- 31
- 被引用文献数
- 8 44
Aloe vela leaf gel extract (AGE) are widely used as cosmetic and pharmaceutical ingredients because of its versatile skin care properties. In order to enhance the bioavailability of AGE, liposomes encapsulating AGE were prepared and examined for their interfacial and biochemical properties. The liposomes prepared from a soybean lecithin (SLP-WHITE, 1.0 wt%) by the Bangham method gave relatively a good trapping efficiency up to the AGE concentration of 0.5 wt%. The stable liposomes were then prepared from 1.0 wt% of SLP-WHITE and different concentrations of AGE by the mechanochemical method using a homogenizer and microfluidizer. The liposomes obtained from 0.25 wt% of AGE were confirmed to be small unilamellar vesicles with a diameter of less than 200 nm, and remained well dispersed for at least two weeks. The obtained liposomes encapsulating AGE were further examined for the effects on proliferation and type I collagen synthesis in normal human neonatal skin fibroblasts, NB1RGB cells. Liposomal AGE clearly showed higher proliferation rate than that of AGE alone. In addition, compared to the control, liposomal AGE significantly increased the collagen synthesis by 23%, while AGE alone showed a small effect. Liposomal AGE was also assayed for the effect on proliferation in normal human epidermal keratinocytes, NHEK(F) cells. Interestingly, liposomal AGE fractions containing 4 and 20μg/mL of the extract considerably increased the proliferation rate by 77% and 101%, respectively. In contrast, AGE alone fractions containing 4 and 20μg/mL of the extract increased the rate by 41% and 60%, respectively. Accordingly, the bioavailability and skin care properties of AGE will be significantly enhanced by liposome encapsulation, and the present liposomal AGE should have a great potential as an effective skin care formulation.