Optimization of Extraction Conditions for Useful Components from Sweet Potato Leaves

2014 ◽  
Vol 43 (11) ◽  
pp. 1749-1756 ◽  
Author(s):  
Meishan Li ◽  
Gwi Yeong Jang ◽  
Sang Hoon Lee ◽  
Sung Tae Kim ◽  
Ji Hyun Lee ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Useful Components ◽  
Sweet Potato Leaves

Pengaruh Pemberian Rebusan Daun Ubi Jalar Terhadap Kecukupan ASI Pada Ibu Menyusui Di Wilayah Kerja Puskesmas Campurejo Kota Kediri

2017 ◽  
Vol 4 (1) ◽  
Author(s):  
Weni Tri Purnani
Keyword(s):  
Breast Milk ◽  
Vitamin A ◽  
Sweet Potato ◽  
Random Sampling ◽  
Simple Random Sampling ◽  
P Value ◽  
Work Area ◽  
Wilcoxon Sign Rank ◽  
Potato Extract ◽  
Sweet Potato Leaves

ABSTRAKASI merupakan sumber makanan yang mengandung nutrisi yang lengkap untuk bayi. Rendahnya cakupan ASI di Indonesia menyumbang akibat yang tidak baik bagi kesehatan bayi. Berdasarkan hasil survey pendahuluan, dari 10 ibu menyusui 6 (60%) diantaranya mengatakan bahwa pengeluaran ASI mereka tidak lancar. Salah satu solusi yang tepat untuk meningkatkan suplai ASI adalah dengan mengonsumsi daun ubi jalar yang dipercaya mengandung berbagai macam zat dan vitamin terutama vitamin A. Tujuan penelitian ini adalah mengetahui pengaruh pemberian rebusan daun ubi jalar terhadap kecukupan ASI pada ibu menyusui di Wilayah Kerja Puskesmas Campurejo Tahun 2016. Desain penelitian ini adalah pre eksperimental menggunakan rancangan pretest posttest design. Dalam penelitian ini diperoleh sampel 20 orang menggunakan teknik simple random sampling. Pengumpulan data dilakukan dengan menggunakan lembar kuesioner dan penilaian. uji hipotesis yang digunakan adalah uji peringkat bertanda dari wilcoxon dengan nilai signifikasi α = 0,05. Hasil uji statistik dari Wilcoxon Sign Rank diperoleh nilai p value = 0,000 dengan taraf kesalahan (α =0,05) dapat dikatakan p ≤ α maka dapat disimpulakan bahwa H0 ditolak dan H1 diterima. Hal ini berarti ada pengaruh pemberian rebusan daun ubi jalar terhadap kecukupan ASI pada ibu menyusui diwilayah kerja puskesmas campurejo kota Kediri tahun 2016. Berdasarkan hasil penelitian diharapkan bagi tenaga kesehatan dapat  dijadikan sebagai masukan untuk menggunakan daun ubi jalar untuk meningkatkan kecukupan ASI dalam pengembangan pengobatan tradisional. Kata Kunci : Kecukupan ASI, Daun Ubi jalar, Menyusui   ABSTRACTBreast milk is a food source that contains a complete nutritions for infants. Coverage of breast milk in Indonesia is still very low. Based on the preliminary results of the survey, from 10 breastfeeding mothers, there are 6 (60%) breastfeeding mom of them say that their breast milk isn’t enough for the babies. There’s a rightest solution to increase the breast milk supply, such as; the breastfeeding mom should eat or consume the sweet potato leaves that believed contains various nutritions and vitamins, especially vitamin A. The purpose of this study was to know the effect of giving sweet potato extract to breast milk adequacy on breastfeeding mothers in work area clinic of Campurejo Kediri City in 2016. The research design of this study was pre-experimental that using pre-test and post-test design. In this study obtained 20 samples of people that using simple random sampling technique. The collecting of data is done by using a questionnaires and assessment. The test hypothesis is marked on the Wilcoxon rank test with significance value α = 0.05. The result of statistical test Wilcoxon Sign Rank obtained p value = 0.000 with a standard error (α = 0.05) can be said p ≤ α then it means that H0 is rejected and H1 is accepted. This means that there is an effect of giving sweet potato extract to breast milk adequacy on breastfeeding mothers in work area clinic of Campurejo Kediri City in 2016. Based on the results is the researcher expecting for health workers can be used as input to use sweet potato leaves to improve the adequacy of breast milk in the development of traditional medicine. Keywords: Adequacy of Breast Milk, Sweet Potato Leaves, Breastfeeding.

Stomatal closure in sweet potato leaves induced by sulfur dioxide involves H2S and NO signaling pathways

2014 ◽  
Vol 58 (4) ◽  
pp. 676-680 ◽  
Author(s):  
K. -D. Hu ◽  
J. Tang ◽  
D. -L. Zhao ◽  
L. -Y. Hu ◽  
Y. -H. Li ◽  
...  
Keyword(s):  
Sulfur Dioxide ◽  
Signaling Pathways ◽  
Sweet Potato ◽  
Stomatal Closure ◽  
No Signaling ◽  
Sweet Potato Leaves

Single-laboratory validation for the determination of caffeic acid and seven caffeoylquinic acids in sweet potato leaves

2014 ◽  
Vol 78 (12) ◽  
pp. 2073-2080 ◽  
Author(s):  
Kazunori Sasaki ◽  
Tomoyuki Oki ◽  
Toru Kobayashi ◽  
Yumi Kai ◽  
Shigenori Okuno
Keyword(s):  
Caffeic Acid ◽  
Sweet Potato ◽  
Caffeoylquinic Acids ◽  
Single Laboratory ◽  
Sweet Potato Leaves

scholarly journals Characterization of Anthocyanins in Sweet Potato Leaves Grown in Various Stages and Conditions

2019 ◽  
pp. 253-262
Author(s):  
Xiaoyu Su ◽  
Zhenbao Jia ◽  
Fei Tao ◽  
Jiamin Shen ◽  
Jingwen Xu ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Anthocyanin Biosynthesis ◽  
Total Phenolic ◽  
Growth Stages ◽  
Anthocyanin Content ◽  
Potential Health ◽  
Significant Difference ◽  
Young Leaves ◽  
Sweet Potato Leaves

Phytochemical-enriched edible greens, sweet potato leaves (Ipomoea batatas L.), have become popular due to potential health benefits. However, the phytochemical contents in sweet potato leaves and their subsequent change over harvest stages and growth condition are mostly unknown. In this study, the anthocyanin profile and content in leaves of four sweet potato cultivars, i.e., white-skinned and white-fleshed Bonita, red-skinned and orange-fleshed Beauregard, red-skinned and white-fleshed Murasaki and purple-skinned and purple-fleshed P40, were evaluated. Fourteen anthocyanins were isolated and identified by HPLC-MSI/MS. The most abundant was cyanidin 3-caffeoyl-p-hydroxybenzoyl sophoroside-5-glucoside, which comprised up to 20% of the total anthocyanins. Of the young leaves (1st and 2nd slip cuttings), Bonita contained the highest anthocyanin content followed by P40. Of the mature leaves (vine stage), Beauregard had the greatest anthocyanin (592.5 ± 86.4 mg/kg DW) and total phenolic (52.2 ± 3 mg GAE/g DW). It should be noted that the lowest anthocyanin and total phenolic content of shoots were found in P40, while tubers of P40 contain the highest content of each. Furthermore, the increase in leaf anthocyanin content over the growth stages that was observed in three of the cultivars but not in P40. No significant difference of anthocyanin content was found in Beauregard leaves grown in the high tunnels when compared with that in the open field. This study demonstrated for the first time that anthocyanin levels were significantly changed in response to various growth stages but not high tunnel condition, indicating that the effect of anthocyanin biosynthesis in sweet potato leaves is highly variable and genotype specific.

scholarly journals Involvement of Phosphatidylserine and Triacylglycerol in the Response of Sweet Potato Leaves to Salt Stress

2019 ◽  
Vol 10 ◽  
Author(s):  
Yicheng Yu ◽  
Meng Kou ◽  
Zhonghui Gao ◽  
Yang Liu ◽  
Ying Xuan ◽  
...  
Keyword(s):  
Salt Stress ◽  
Sweet Potato ◽  
Sweet Potato Leaves

scholarly journals Identification and quantification of anthocyanins in purple-fleshed sweet potato leaves

Heliyon ◽  
2019 ◽  
Vol 5 (6) ◽  
pp. e01964 ◽  
Author(s):  
Xiaoyu Su ◽  
Jason Griffin ◽  
Jingwen Xu ◽  
Ping Ouyang ◽  
Zhihui Zhao ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Sweet Potato Leaves ◽  
Identification And Quantification

scholarly journals The Content of Phenolic Acids and Flavonols in the Leaves of Nine Varieties of Sweet Potatoes (Ipomoea batatas L.) Depending on Their Development, Grown in Central Europe

Molecules ◽  
2020 ◽  
Vol 25 (15) ◽  
pp. 3473 ◽  
Author(s):  
Barbara Krochmal-Marczak ◽  
Tomasz Cebulak ◽  
Ireneusz Kapusta ◽  
Jan Oszmiański ◽  
Joanna Kaszuba ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Phenolic Acids ◽  
Leaf Development ◽  
Growth Stage ◽  
Polyphenolic Compounds ◽  
Raw Material ◽  
Growth Stages ◽  
Potato Leaf ◽  
Antioxidant Power ◽  
Sweet Potato Leaves

The aim of the study was the qualitative and quantitative analysis of the bioactive components present in the leaves of 9 sweet potato cultivars grown in the moderate climate in Poland, which were harvested at different growth stages according to the BBCH (Biologische Bundesanstalt, Bundessortenamt und Chemische Industrie) scale (14, 51, 89). It was found that sweet potato leaves contained 7 polyphenolic compounds, including 5 chlorogenic acids—neochlorogenic acid (5-CQA), chlorogenic acid (3-CQA), 4-cryptochlorogenic acid (4-CQA), 34-di-O-caffeoylqunic acid (3,4-CQA), 3,5-di-O-caffeoylqunic acid (3,5-CQA)—and 2 flavonoids, quercetin-3-O-galactoside (Q-3-GA) and quercetin-3-O-glucoside (Q-3-GL). Their content depended on the genotype of the examined cultivars and on the stage of leaf development. The mean content of the identified polyphenolic compounds in the examined cultivars ranged from 148.2 to 14.038.6 mg/100 g−1 DM for the leaves harvested at growth stage 14 according to the BBCH scale. In the case of leaves harvested at BBCH stage 51, the concentration of polyphenolic compounds ranged from 144.76 to 5026.8 mg/100 g−1 DM and at BBCH stage 89 from 4078.1 to 11.183.5 mg/100 g−1 DM. The leaves of the Carmen Rubin cultivar collected at stage 14 contained the highest amount of polyphenolic compounds, while Okinava leaves had the highest amount of these compounds at stage 51. The highest content of polyphenolic compounds in leaves at BBCH growth stage 89 was found in the Radiosa variety. The highest concentration levels were found for 3-CQA at all stages of leaf development. Significant correlations between polyphenol content and antioxidant activity measured by 2,2’-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid (ABTS), 2,2-diphenyl-1-picrylhydrazyl (DPPH), and ferric reducing/antioxidant power (FRAP) were found. The results of this experiment revealed that the growth stages and genetic properties of cultivars have a very significant influence on the content of phenolic acids and flavonols in sweet potato leaves. The results are innovative and can have a practical application, as the knowledge of the content of the substances under study makes it possible to determine the optimal management practice of sweet potato leaf harvest in order to obtain more top-quality raw material.

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