scholarly journals Anatomical Structure of Sepal and Petal of Red Dragon Fruit (Hylocereus polyrhizus Britton & Rose) During Flower Development

2019 ◽  
Vol 4 (2) ◽  
pp. 163-174
Author(s):  
Utaminingsih Utaminingsih ◽  
Sulhan Etfanti ◽  
Suharyanto Suharyanto ◽  
Maryani Maryani
Keyword(s):  
Flower Development ◽  
Anatomical Structure ◽  
Morphological Observation ◽  
Image Capture ◽  
Epidermal Tissue ◽  
Petal Length ◽  
Dragon Fruit ◽  
Bud Size ◽  
Sepal Length ◽  
Hylocereus Polyrhizus

Red dragon fruit (Hylocereus polyrhizus Britton & Rose) is one type of cactus plant which is very potential as an ornamental plant and edible fruit. Flower is organ that play an important role in the process of breeding plants generatively. This reasearch aimed to study the anatomical structure of sepals and petals of red dragon fruit plants during flower development. The research stages included: sepals and petals sampling that held at various stages of flowering ; morphological observation (measurement length of sepals and petals); anatomical slides of sepals and petals cross section using the embedding method, anatomical observation and image capture of sepals and petals. The parameters observed were bud size, sepal length, petal length, sepal thickness, petal thickness, and tissue description composed. The results of this study indicated that buds have an increased development pattern. The increase in bud size is directly proportional to the stage of the bud. Sepal and petal are composed of epidermal tissue which form papillae, cryptophore stomata, secretory parenchyma space containing mucus, and tissues transport system is closed collateral.

Reproductive Responses of Capsicum annuum to High Temperatures

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 543c-543
Author(s):  
Ami N. Erickson ◽  
Albert H. Markhart
Keyword(s):  
Capsicum Annuum ◽  
High Temperatures ◽  
Fruit Development ◽  
Flower Development ◽  
Fruit Set ◽  
Fruit Production ◽  
Yield Reduction ◽  
Bud Size ◽  
Growth Chambers ◽  
Constant Growth

Fruit yield reduction due to high temperatures has been widely observed in Solanaceous crops. Our past experiments have demonstrated that Capsicum annuum cultivars Ace and Bell Boy completely fail to produce fruit when grown at constant 33 °C. However, flowers are produced, continually. To determine which stages of flower development are sensitive to high temperatures, pepper buds, ranging in size from 1 mm to anthesis, were exposed to high temperatures for 6 hr, 48 hr, 5 days, or for the duration of the experiment. Fruit set for each bud size was determined. Exposure to high temperatures at anthesis and at the 2-mm size stage for 2 or more days significantly reduced fruit production. To determine whether inhibition of pollination, inhibition of fertilization, and/or injury to the female or male structures prevents fruit production at high temperatures, flowers from pepper cultivars Ace and Bell Boy were grown until flowers on the 8th or 9th node were 11 mm in length. Plants were divided between 25 °C and 33 °C constant growth chambers for 2 to 4 days until anthesis. At anthesis, flowers from both treatments were cross-pollinated in all combination, and crosses were equally divided between 33 or 25 °C growth chambers until fruit set or flowers abscised. All flower crosses resulted in 80% to 100% fruit set when post-pollination temperatures were 25 °C. However, post-pollination temperatures of 33 °C significantly reduced fruit production. Reduced fruit set by flowers exposed to high temperatures during anthesis and pollination is not a result of inviable pollen or ovule, but an inhibition of fertilization or initial fruit development.

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 Struktur Anatomi dan Uji Histokimia Terpenoid dan Fenol Dua Varietas Sirih Hijau (Piper betle L.)

BIOSCIENTIAE ◽  
2021 ◽  
Vol 17 (2) ◽  
pp. 1
Author(s):  
Gusti Puspa Dewi ◽  
Evi Mintowati Kuntorini ◽  
Eny Dwi Pujawati
Keyword(s):  
Copper Acetate ◽  
Anatomical Structure ◽  
Secretory Cells ◽  
Cell Diameter ◽  
Piper Betle ◽  
Vascular Bundles ◽  
Palisade Parenchyma ◽  
Betel Leaf ◽  
Epidermal Tissue ◽  
Pith Parenchyma

This study aims to determine the anatomical structure and histochemical test of terpenoid and phenol compounds in two varieties of green betel plants (Piper betle). Making leaves anatomical structure preparations using the fresh method, testing terpenoid compounds with 5% copper acetate, testing phenol with ferric trichloride 10% and some grains of sodium carbonate. The observations of the anatomical structure of green betel leaf varieties 1 and varieties 2 have similarities consisting of the upper epidermis, upper hypodermis, palisade parenchyma, parenchymal sponges, vascular bundles (xylem and phloem), sclerenchyma, cholenchyma, lower epidermis, lower hypodermis, secretory cells, trichoma, stoma and calcium oxalate crystals, and in varieties 2 look more trichomes. The anatomical structure of the variety 1 betel stem and varieties 2 are arranged from the outside in the direction of the epidermal tissue, colenchymal tissue, cortical bundles, sclerenchyma, cortex, medullary and peripheral vascular files, pith, the central part of the stem is a secretory gland. Phenol in betel vine varieties 1 and varieties 2 is positive in the secretion cell part which is spread in the parenchymal tissue of the mother's leaf bone and lamina, whereas in the stem is spread around the cortex and pith parenchyma. Positive secretion cells contain phenol not as much as secretory cells containing terpenoids. Based on quantitative observations the size of oil cell density and secretion cell diameter, the essential oils contained in the cell secretions in the leaves of variety 1 are more than varieties 2 while in the varieties 2, there are more varieties 1.

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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