scholarly journals Studies on the storage stability of fermented red dragon fruit (Hylocereus polyrhizus) drink

2018 ◽  
Vol 27 (5) ◽  
pp. 1411-1417 ◽  
Author(s):  
Kah Yee Choo ◽  
Caryn Kho ◽  
Yien Yien Ong ◽  
Yin Yin Thoo ◽  
Renee Lay Hong Lim ◽  
...  
Keyword(s):  
Storage Stability ◽  
Dragon Fruit ◽  
Hylocereus Polyrhizus

Stabilitas Formulasi Gel Ekstrak Buah Naga

2019 ◽  
Vol 8 (2) ◽  
pp. 83-88
Author(s):  
Ariyanti Ariyanti ◽  
Eni Masruriati ◽  
Laely Arlindya Wanti
Keyword(s):  
Colon Cancer ◽  
Oral Health ◽  
Storage Stability ◽  
Test Group ◽  
Dragon Fruit ◽  
Post Test ◽  
Noise Test ◽  
Sugar Levels ◽  
The Stability ◽  
Hylocereus Polyrhizus

Tanaman buah yang berpotensi sebagai bahan obat adalah buah naga. Buah naga dapat mengobati berbagai macam penyakit diantaranya adalah penyeimbang kadar gula darah, pencegah kanker usus, perlindungan kesehatan mulut, pencegah pendarahan dan obat keluhan keputihan. Rancangan penelitian adalah the post test only design yang terbagi menjadi 3 kelompok. Kelompok uji dengan pemberian ekstrak gel buah naga dengan konsentrasi PVP 5%, 7,5% dan 10%. Masing-masing kelompok diuji stabilitas pada suhu 27oC dan 40oC di laboratorum STIKES Kendal. Hasil pengujian kemudaian dianalisa dengan menggunakan uji anova. Tujuan penelitian ini untuk mendapatkan kondisi yang diinginkan dalam waktu sesingkat mungkin dengan cara menyimpan sediaan pada suhu 27oC dan 40oC.  Uji fitokimia pada ekstrak buah naga menunjukkan adanya senyawa flavonoid, saponin. Sediaan gel buah naga mengandung saponin dan flavonoid. Pada uji stabilitas dengan basis polivinil alkohol pada suhu 270C dan tidak stabil pada suhu 400C pada uji homogenitas, elastisitas, pH, dan tidak stabil pada organoleptis, uji daya sebar dan waktu kering. Sediaan gel buah naga pada suhu 270C dan 400C pada uji organoleptis, homogenitas, elastisitas, pH yang paling stabil pada konsentrasi 10% pada suhu 27oC.   Kata kunci : gel ektrak buah naga, stabilitas penyimpanan   STABILITY OF HYLOCEREUS POLYRHIZUS EXTRACT GEL FORMULATION   ABSTRACT Fruit plants that have potential as medicinal ingredients are Hylocereus polyrhizus. H. polyrhizus can treat various diseases including balancing blood sugar levels, preventing colon cancer, protecting oral health, preventing bleeding and complaints of vaginal discharge.The study design was the post test only design which was divided into 3 groups. Test group by giving dragon fruit gel extract with PVP concentration of 5%, 7.5% and 10%. The results of the noise test were analyzed using anova test. The purpose of this study was to obtain the desired conditions in the shortest time possible by storing preparations at temperatures of 27oC and 40oC in Kendal STIKES laboratory. Phytochemical tests on dragon fruit extracts showed the presence of flavonoids, saponins. H. polyrhizus gel  preparations contain saponins and flavonoids. In the stability test on the basis of polyvinyl alcohol at 270C and unstable at 400C on the homogeneity, elasticity, pH, and unstable test on organoleptic, spreadability test and dry time. H. polyrhizus gel preparations at 270C and 400C at the organoleptic test, homogeneity, elasticity, and pH are the most stable at a concentration of 10% at 27oC. Keywords: hylocereus polyrhizus gel, storage stability

scholarly journals ANTIOXIDANT ACTIVITY OF RED DRAGON FRUIT PEEL (HYLOCEREUS POLYRHIZUS (F.A.C. WEBER) BRITTON AND ROSE) ISOLATES USING 2,2-DIPHENYL-1-PICRYLHYDRAZYL METHOD

2018 ◽  
Vol 11 (1) ◽  
pp. 124 ◽  
Author(s):  
Sri Wahdaningsih ◽  
Subagus Wahyuono ◽  
Sugeng Riyanto ◽  
Retno Murwanti
Keyword(s):  
Antioxidant Activity ◽  
Liquid Chromatography ◽  
Medicinal Plants ◽  
Thin Layer ◽  
Preparative Thin Layer Chromatography ◽  
Fruit Peel ◽  
Dragon Fruit ◽  
Vacuum Liquid Chromatography ◽  
Layer Chromatography ◽  
Hylocereus Polyrhizus

  Objective: Indonesia is a country which has various natural resources including medicinal plants. Among the plants, red dragon fruit is interesting to be studied. In this study, antioxidant activity of red dragon fruit peel (Hylocereus polyrhizus (F.A.C. Weber) Britton and Rose) isolate was tested using 2,2-diphenyl-1-picrylhydrazyl method.Methods: Isolation of active compounds was performed through the application of vacuum liquid chromatography and preparative thin-layer chromatography (TLC). Antioxidant activity was tested using both TLC and spectrophotometry.Result: Results revealed that the values of IC50 of isolate 1 and 2 were 2.952, 14 μg/mL and 25.635,95 μg/mL, respectively.Conclusion: Isolate of dragon fruit has antioxidant activity. The compound which results in antioxidant activity is terpenoid and steroid.

scholarly journals Pemanfaatan Jamur Trichoderma sp Sebagai Antagonis Patogen Busuk Sulur Tanaman Buah Naga Merah (Hylocereus polyrhizus) Secara In Vitro

2018 ◽  
Vol 7 (1) ◽  
pp. 19
Author(s):  
Herlyan Prasetiyo ◽  
Purwati Purwati ◽  
Iin Arsensi
Keyword(s):  
Plant Disease ◽  
Secondary Data ◽  
Pathogenic Fungi ◽  
Primary Data ◽  
Field Observations ◽  
Trichoderma Sp ◽  
Dragon Fruit ◽  
Fruit Plants ◽  
Hylocereus Polyrhizus

Utilization of Trichoderma sp fungi as pathogenic fungi antagonists in red dragon fruit plants (Hylocereus polyrhizus) in vitro. The purpose of this study was to identify foul pathogens of dragon fruit plants and then test the ability of Trichoderma sp antagonists to deciduous pathogens of red dragon fruit plants in vitro. The study was conducted from August to October 2016, The research was conducted at the Laboratory of Pest and Plant Disease Sciences, Faculty of Agriculture, Mulawarman University, Samarinda. Sampling of plants exposed to foul tendrils was carried out in Bukit Merdeka Village, Samboja District, Kutai Kartanegara Regency. There are two data observed in this study, primary data and secondary data. Primary data is data obtained directly from the source through direct field observations and laboratory observations and secondary data data obtained from interviews with farmers. The results showed that the pathogen that causes tendon rot in dragon fruit plants is the fungus Colletotrichum gloesporioides (penz. Ssaac). Trichoderma sp can inhibit the development of pathogens Colletotrichum gloesporioides (Penz.) Ssaac., With the highest average resistance of 71.85%. 

scholarly journals Efek Agitasi Susu Probiotik yang ditambahkan Buah Naga Merah (Hylocereus polyrhizus) terhadap Uji Sensorik dan Total Plate Count

2016 ◽  
Vol 1 (1) ◽  
pp. 816-823
Author(s):  
Feby Zalika Parindra ◽  
Yusdar Zakaria ◽  
Yurliasni Yurliasni
Keyword(s):  
Ph Value ◽  
Plate Count ◽  
Milk Processing ◽  
Total Plate Count ◽  
Randomized Design ◽  
Dragon Fruit ◽  
Microbial P ◽  
Two Factors ◽  
Completely Randomized Design ◽  
Hylocereus Polyrhizus

Abstrak.  Suatu penelitian telah dilakukan untuk mengetahui efek agitasi susu probiotik yang ditambahkan buah naga merah (Hylocereus Polyrhizus). Penelitian ini dilakukan di Laboratorium Ilmu dan Teknologi Pengolahan Susu Fakultas Pertanian Universitas Syiah Kuala pada tanggal 29 April - 31 Mei 2016. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) pola faktorial 2x4 dengan 3 kali ulangan yang terdiri dari 2 faktor, A, agitasi yaitu (A1) dan (A2) non agitasi. Dan faktor B yaitu konsentrasi buah naga merah (B1) 20%,  (B2) 25%,  B3 (30%) dan (B4) 35%. Parameter yang diamati adalah derajat keasaman (pH), total mikroba dan uji organoleptik. Hasil penelitian menunujukkan bahwa terdapat pengaruh yang sangat nyata (P0,01) terhadap derajat keasaman (pH) dan berpengaruh nyata terhadap total mikroba (P0,05) serta terdapat interaksi antara kedua perlakuan. Sedangkan untuk uji organoleptik terdapat pengaruh yang sangat nyata (P0,01) terhadap kekentalan dan warna susu probiotik.  nilai derajat keasaman pH 4,03 - 4,11 dengan agitasi (pengadukan) masih sesuai dengan standar (SNI) 01-2981-1992. Sedangkan nilai total mikroba optimal terjadi pada penambahan buah naga sebanyak 30% baik agitasi maupun non agitasi. Effects of Milk Probiotic Agitation Added Red Dragon Fruit (Hylocereus Polyrhizus) on Sensory Test and Total Plate Coun Abstract.  A study about effects of milk probiotic agitation added red dragon fruit (Hylocereus Polyrhizus)  has been conducted to determine to test sensory and total plate count. This research was held at the Laboratory of Science and Milk Processing Technology, Agriculture Fakulty Syiah Kuala University on April 29 to May 31, 2016. This study used a completely randomized design (CRD) 2x4 factorial design with three replications consisting of two factors, A, agitation (A1) and (A2) non agitation. And factor B is the concentration of red dragon fruit (B1) 20%, (B2) 25%, B3 (30%) and (B4) 35%. The observed parameter is the degree of acidity (pH), total microbial and organoleptic tests. The results of the study indicate that the there is a  highly significant influence (P 0,01) to the degree of acidity (pH) and total significantly affected the total microbial (P 0.05), and there is interaction between the two treatments. As for organoleptic tests are highly significant effect (P 0.01) the thickness and color of probiotic milk. acidity pH value of 4.03 to 4.11 with agitation (stirring) is still in accordance with the standard (SNI) 01-2981-1992. While the total value of optimal microbial occurred upon addition of dragon fruit by 30% both agitation and non agitation

scholarly journals Physicochemical Properties and Stability of Microencapsulated Betacyanin Pigments from Red Dragon Fruit Peels and Flesh

2020 ◽  
pp. 141-148
Author(s):  
Rosalinda C Torres ◽  
Rowelain Mae G Yumang ◽  
Chelsea Kate F Jose ◽  
Danielle Camille P Canillo
Keyword(s):  
Moisture Content ◽  
Physicochemical Properties ◽  
Morphological Characterization ◽  
Stability Study ◽  
Natural Colorant ◽  
Hygroscopic Moisture ◽  
Dragon Fruit ◽  
The Stability ◽  
Spray Dried ◽  
Hylocereus Polyrhizus

Dragon fruit (Hylocereus polyrhizus) is known for its purple-coloured peels and pulp, which can be attributed to the presence of betalains. In this study, the potential of red dragon fruit as a source of natural colorant was investigated. Betacyanins were extracted from red dragon fruit peels and flesh in 1:3 ratio with water. Microencapsulation by spray-drying was done by adding 5% and 10% (w/v) maltodextrin (DE 11.8) to peels and flesh extracts, respectively. The spray-dried colorant powders all obtained <10% moisture content, 5.261-6.409 g/100g hygroscopic moisture content, and 5.317-7.349(mg/100L) betacyanin content. Morphological characterization revealed spherical, agglomerated particles with visible cracks on the surface. The stability study conducted showed that pigment retention was lowest at 70°C and highest at 4°C. Keywords: Hylocereus polyrhizus; Red dragon fruit; Betacyanin; Microencapsulation; Physicochemical properties

scholarly journals CHARACTERISTICS ANALYSIS OF DRAGON FRUIT EXTRACT SKIN BETACYANIN of Hylocereus polyrhizus AND Hylocereus undatus WITH TEST OF STABILITY ORGANOLEPTIC JELLY AS ATLAS MEDIA

2016 ◽  
Vol 2 (1) ◽  
Author(s):  
Tutut Puji Lestari
Keyword(s):  
High School ◽  
Phase I ◽  
Junior High School ◽  
Junior High ◽  
Phase Iii ◽  
Fruit Skin ◽  
Dragon Fruit ◽  
Hylocereus Undatus ◽  
Hylocereus Polyrhizus ◽  
Phase I And Ii

Dragon fruit Hylocereus polyrhizus  and Hylocereus undatus are familiy of cactus, grown in Malang. The high consumption of dragon fruit, have an impact on the fruit skin buildup that simply disposed of as trash. Dragon fruit skin is known to have a source of natural red dye, which is Betacyanin. The purpose of this study was to determine the characteristics of the dragon fruit peel extract Betacyanin Hylocereus polyrhizus and Hylocereus undatus as well as the stability of the organoleptic jelly, which will be developed into a learning materials atlas for class VIII Junior High School. The study was conducted in September-October 2015. The study was conducted in three stages. This type of research phase I and II is True Experimental, and phase III is development. The results of phase I shows that various concentrations of ethanol (70% and 90%) have an effect on the characteristics of the extract Betacyanin skin dragon fruit Hylocereus polyrhizus and Hylocereus undatus, but very significant effect on skin extract dragon fruit Hylocereus undatus the treatment of N2, EI at pH 4,5. Later in the phase II study results showed that different concentrations of extracts of the best Betacyanin significantly affect the organoleptic stability of jelly. The results of phase III is the development of phase I and II studies into Atlas media for 8th grade of  Junior High School.  

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