scholarly journals Ethanol and aqueous extracts characterization from guava (Psidium guajava L.) and avocado (Persea americana Mill.) residues

2020 ◽  
Author(s):  
Jukary Montserrat RAMÍREZ CONTRERAS ◽  
María Dolores MARIEZCURRENA BERASAIN ◽  
Dora Luz PINZÓN MARTÍNEZ ◽  
Enrique Daniel ARCHUNDIA VELARDE ◽  
Ana María ROQUE OTERO
Keyword(s):  
Psidium Guajava ◽  
Persea Americana ◽  
Aqueous Extracts ◽  
Mill Residues

scholarly journals JENIS DAN PEMANFAATAN TANAMAN OBAT DI DESA BUDI MUKTI SULAWESI TENGAH DAN PENGEMBANGANNYA SEBAGAI MEDIA PEMBELAJARAN

2018 ◽  
Vol 9 (1) ◽  
pp. 11-19
Author(s):  
Ni Made Mega Hariani
Keyword(s):  
Cocos Nucifera ◽  
Aloe Vera ◽  
Zingiber Officinale ◽  
Psidium Guajava ◽  
Persea Americana ◽  
Apium Graveolens ◽  
Piper Betle ◽  
Syzygium Aromaticum ◽  
Cordyline Fruticosa ◽  
Cocos Nucifera L

Penelitian ini bertujuan untuk mengidentifikasi jenis dan cara pemanfaatan tanaman obat yang dimanfaatkan sebagai bahan obat-obatan tradisional oleh masyarakat di Desa Budi Mukti Sulawesi Tengah dan pengembangannya sebagai media pembelajaran. Metode yang digunakan adalah metode survei dimana sampel diambil secara acak. Analisis pemanfaatan tanaman sebagai obat dilakukan dengan wawancara secara terbuka dengan masyarakat di sekitar lokasi penelitian. Hasil penelitian diperoleh 36 species tanaman yang berkhasiat obat, tergolong dari 29 familia yaitu: Cordyline fruticosa L. (andong), Pluchea indica L. (beluntas), Cocos nucifera L. (kelapa), Andrographis paniculata Ness. (sambiloto), Annona muricata L. (sirsak), Amaranthus hybridus L. (bayam), Apium graveolens L. (seledri), Ipomea reptans L. (kangkung), Ipmoea batatas L. (ubi jalar), Mamordica charantia L. (pare), Carica papaya L. (pepaya), Euphorbia tirucalli L. (petikan kebo), Orthosiphoon staminues Benth. (kumis kucing), Persea Americana Mill. (alpukat), Michelia alba (cempaka putih), Hibiscus rosasinensis L. (kembang sepatu), Cyclea barbata Miers. (cincau), Leucaena leucocephala L. (lantoro), Moringa oleifera (kelor), Psidium guajava L. (jambu biji), Syzygium aromaticum L. (cengkeh), Averrhoa bilimbi L. (belimbing wuluh), Pandanus amaryllifolius Roxb. (pandan wangi), Cymbopogon citratus L. (sere), Imperata cylindrical L. (alang-alang), Piper betle L. (daun sirih), Morinda citriffolia L. (mengkudu), Citrus aurantifolia L. (jeruk nipis), Manilkara kauki L. (sawo), Physalis angulate (ciplukan), Aloe vera L. (lidah buaya), Zingiber officinale Rosc. (jahe), Cucurma xanthorrhiza Roxb. (temulawak), Curcuma domestica Val. (kunyit), Zingiber purpureum Roxb. (bangle), dan Kaempferia galangal L. (kencur). Bagian tumbuhan yang dimanfaatkan untuk pengobatan antara lain; akar, batang, daun, bunga, buah, biji, kulit batang dan seluruh bagian tumbuhan dengan cara penggunaan yang berbeda-beda. Penelitian ini menghasilkan produk berupa buku saku sebagai media pembelajaran Biologi.  

scholarly journals EFECTO ALEPOPÁTICO DE TRES EXTRACTOS VEGETALES SOBRE EL DESARROLLO DE RAPHANUS SATIVUS (BRASSICACEAE) EN EL PERÚ

2019 ◽  
pp. 1-3
Keyword(s):  
Raphanus Sativus ◽  
Allium Sativum ◽  
Dry Weight ◽  
Persea Americana ◽  
Allelopathic Effect ◽  
Aqueous Extracts ◽  
Ruta Graveolens ◽  
Allelopathic Potential ◽  
Raphanus Sativus L ◽  
Water Treatments

EFECTO ALEPOPÁTICO DE TRES EXTRACTOS VEGETALES SOBRE EL DESARROLLO DE RAPHANUS SATIVUS (BRASSICACEAE) EN EL PERÚ ALLELOPATHIC EFFECT OF THREE PLANTS EXTRACTS ON THE DEVELOPMENT OF RAPHANUS SATIVUS (BRASSICACEAE) IN PERÚ Hildebrando Ayala & Rafael La Rosa DOI: https://doi.org/10.33017/RevECIPeru2007.0007/ RESUMEN El uso de plantas con actividad alelopática en la actualidad resulta de gran importancia  porque nos permite el desarrollo de una agricultura rentable y no contaminante del medio ambiente. El objetivo de este trabajo fue estudiar la acción de extractos acuosos de ajo (Allium sativum L, Liliaceae), palta (Persea americana Mill, Lauraceae) y ruda (Ruta graveolens L, Rutaceae) sobre el desarrollo de la hortaliza rabanito (Raphanus sativus L, Brassicaceae). Los extractos se prepararon a partir de bulbos de A. sativum, semilla de P. americana y hojas y flores de R. graveolens a los cuales triturados se le adiciona agua hervida. Los tratamientos fueron extractos puros al (20% p/v). El diseño fue completamente aleatorizado con 4 repeticiones. Se determino peso fresco (g), peso seco (g), longitud de raíz (cm), longitud área (cm) y área foliar(cm2). Los datos se analizaron mediante ANOVA y Test de Tukey para la comparación de medias. Los resultados alcanzados muestran de que no existe efectos significativos en comparación con el control, del potencial alelopático de los extractos acuosos evaluados bajo condiciones controladas. Palabras claves: Extractos acuosos, semillas, hojas, flores, bulbos, Allium sativum, Persea americana, Ruta graveolens. ABSTRACT The use of plants with allelopathic activity nowadays is very important because it allows us to develop a profitable agriculture and non-polluting the environment. The objective of this work was to study the action of aqueous extracts of garlic (Allium sativum L, Liliaceae), avocado (Persea americana Mill, Lauraceae) and rough (Ruta graveolens L, Rutaceae) on the development of vegetable radish (Raphanus sativus L, Brassicaceae). The extracts were prepared from A. sativum bulbs, P. americana seeds and R. graveolens leaves and flowers to which he adds crushed boiled water. Treatments were the pure extracts (20% w / v). The design was completely randomized with 4 repetitions. It was found fresh weight (g), dry weight (g), root length (cm) long area (cm) and leaf area (cm2 ). The data was analyzed with Anova and Tukey test for the comparison of averages. The results show that there is no significant effects compared to the control of allelopathic potential of aqueous extracts tested under controlled conditions. Keywords: Aqueous extracts, seed, leaves, flowers, bulbs, Allium sativum, Persea americana, Ruta graveolens.

scholarly journals Comparative evaluation of antimicrobial efficacy of an alternative natural agent for disinfection of toothbrushes

2017 ◽  
Vol 11 (01) ◽  
pp. 111-116
Author(s):  
R. Vignesh ◽  
C. Vishnu Rekha ◽  
Parisa Norouzi Baghkomeh ◽  
Sankar Annamalai ◽  
Ditto Sharmin
Keyword(s):  
Lactobacillus Acidophilus ◽  
Comparative Evaluation ◽  
Psidium Guajava ◽  
Control Group ◽  
Microbial Culture ◽  
Aqueous Extracts ◽  
Colony Forming Unit ◽  
Evaluation Group ◽  
Guava Leaves ◽  
Natural Agent

ABSTRACT Objective:The aim of this study was to assess the antimicrobial potency of aqueous extract of Psidium guajava leaves in two different concentrations as a toothbrush disinfectant against three oral bacterial species.Materials and Methods: Aqueous extracts of P. guajava leaves were prepared at 20% and 30% concentrations and 0.2% chlorhexidine was used as control. The toothbrushes were equally divided into 9 groups with 10 toothbrushes per disinfectant, which were contaminated with Streptococcus mutans, Lactobacillus acidophilus, and Enterococcus faecalis. Microbial culture was done after 5 min and 3 h of decontamination.Results: Group Ia and Ib showed that the presence of E. faecalis was observed in 8 (40%) of 20 toothbrushes. Group IIa and IIb showed a significant reduction in colony forming unit/toothbrush during 3 h evaluation. Group IIIa and IIIb showed nil growth during 3 h evaluation. Nil growth was observed with the control group for all three organisms. Statistically significant values were obtained for 5 min (P < 0.001) and 3 h (P < 0.001) disinfection period against L. acidophilus at two different concentrations.Conclusion: Aqueousextracts of guava leaves can be used as an alternative organic product for disinfection of toothbrushes.

Upgrading and detoxification of aqueous extracts from dry olive mill residues by white-rot fungi

2010 ◽  
Vol 150 ◽  
pp. 225-225
Author(s):  
I. Sampedro ◽  
F. Federici ◽  
J.A. Ocampo ◽  
I. Garcia Romera ◽  
A. D’Annibale ◽  
...  
Keyword(s):  
White Rot Fungi ◽  
White Rot ◽  
Aqueous Extracts ◽  
Mill Residues ◽  
Olive Mill

scholarly journals SELEKSI POHON TEDUHAN UNTUK RAIN GARDEN

2017 ◽  
Vol 3 (1) ◽  
Author(s):  
Nova Annisa
Keyword(s):  
Water Content ◽  
Theobroma Cacao ◽  
Mangifera Indica ◽  
Psidium Guajava ◽  
Persea Americana ◽  
Canopy Closure ◽  
Rain Garden ◽  
Shade Trees ◽  
Gnetum Gnemon ◽  
The Relationship

Penelitian ini bertujuan untuk mengetahui jenis pohon yang sesuai untuk rain garden, jumlah stomata, proporsi penutupan kanopi dan kandungan air dalam daun dari beberapa jenis pohon teduhan, serta hubungan antara jumlah stomata daun dengan luas daun, jika terdapat faktor proporsi kandungan air yang diduga mempengaruhi akan dikendalikan. Data yang diperoleh di analisis  proporsi kandungan air dalam daun, proporsi penutupan kanopi, dan jumlah stomata dengan menggunakan analisis deskriptif. Untuk mengetahui hubungan antara luas daun, proporsi penutupan kanopi dan kandungan air dalam daun pada pohon teduhan digunakan analisis korelasi parsial dengan bantuan SPSS versi 17. Berdasarkan hasil penelitian terhadap kerapatan stomata dalam ukuran  1cm², diperolehlah 10 jenis pohon teduhan tertinggi seperti Psidium guajava (jambu biji), Mangifera casturi (kasturi), Hevea brasiliensis  (karet), Pithecellobium lobatum (jengkol), Mangifera indica (mangga), Theobroma cacao (coklat), Persea americana (alpukat), Eugenia aquea (jambu air), Gnetum gnemon (melinjo), dan Arthocarpus heterophyllus (nangka). Kerapatan stomata daun tidak berhubungan terhadap luas daun pada pohon teduhan. Kata kunci: pohon teduhan rain garden, stomata. This study aims to determine the type of tree suitable for rain garden, number of stomata, the proportion of canopy closure and water content in the leaves of several types of shade trees, and the relationship between the number of leaf stomata to leaf area, if there is a proportion factor thought to affect the water content will be controlled. Data obtained in the analysis of the proportion of water content in the leaves, the proportion of canopy closure, the location of the tree, and the number of stomata by using descriptive analysis. To determine the relationship between leaf area, the proportion of canopy closure and water content in the leaves of the shade trees used partial correlation analysis with SPSS version 17. Based on the results of a study of the density of stomata in the size of 1 cm², found 10 species of trees shade the best such as Psidium guajava (guava), Mangifera casturi (kasturi), Hevea brasiliensis (rubber), Pithecellobium lobatum (jengkol), Mangifera indica (mango), Theobroma cacao (brown), Persea americana (avocado), Eugenia aquea (rose apple), Gnetum gnemon (melinjo), and Arthocarpus heterophyllus (jackfruit). The density of leaf stomata are not related to the broad leaves of the shade tree. Keywords: rain garden, shade tree, stomata.

scholarly journals Ensayos de propagación de algunas especies forestales aptas para el manejo de la microcuenca La Lejía, Cundinamarca, Colombia

2012 ◽  
Vol 2 (14) ◽  
pp. 124
Author(s):  
Julieth Pérez-Vega ◽  
Leidy Acosta Rodríguez ◽  
Ángela Parrado-Rosselli
Keyword(s):  
Psidium Guajava ◽  
Persea Americana ◽  
Ficus Carica ◽  
Cedrela Odorata ◽  
Cordia Alliodora ◽  
Tabebuia Rosea ◽  
Solanum Betaceum

Se realizaron ensayos de propagación de 13 especies forestales, consideradas en estudios previos como aptas para la recuperación y manejo de la microcuenca La Lejía en el Municipio de Arbeláez, Cundinamarca, Colombia. Las especies estudiadas fueron la guadua (Guadua angustifolia Kunth), el madre de agua [Trichanthera gigantea (Humb. & Bonpl)], el ocobo (Tabebuia rosea DC.), el nogal cafetero [Cordia alliodora (Ruiz &Pav.) Cham.], el drago (Croton spp.), balú (Erythrina edulis Triana), el aguacate (Persea americana Mill.), el cedro de altura (Cedrela montanaTurcz.), el cedro rosado (Cedrela odorata Griseb.), el caucho (Ficus spp.), el brevo (Ficus carica L.), la guayaba (Psidium guajava L.) y el tomate de árbol (Solanum betaceum Cav.). Para tal fin se instalaron tres viveros comunitarios en los que se evaluó la respuesta de la especie en uno de tres tipos de propagación (vegetativa: estacas; sexual: semillas y plántulas rescatadas del bosque) ante cinco diferentes tipos de sustrato:1) tierra de la finca, 2) tierra y abono orgánico, 3) tierra y cascarilla, 4) tierra y caldo microbiano y 5) tierra y cascarilla, abono, caldo microbiano. La respuesta se midió en términos del porcentaje de supervivencia/germinación, el cambio en el número de hojas y el cambio en la altura durante tres meses. Los resultados muestran que los tratamientos tierra con abono orgánico y tierra con cascarilla fueron significativamente mejores en términos de crecimiento y supervivencia para cualquiera de los tipos de reproducción evaluados. Las especies que mejor desempeño presentaron fueron el cedro de altura (Cedrela montana) y el balu (Erythrina edulis). Se resaltala importancia de los viveros para el éxito, monitoreo y seguimiento de estrategias de propagación de especies con algún valor para las comunidades locales.

scholarly journals The Influence of Solvent, Host, and Phenological Stage on the Yield, Chemical Composition, and Antidiabetic and Antioxidant Properties of Phragmanthera capitata (Sprengel) S. Balle

2020 ◽  
Vol 2020 ◽  
pp. 1-16
Author(s):  
Césaire Feudjio ◽  
Muhammad Arfat Yameen ◽  
Guy Sedar Singor Njateng ◽  
Muhammed Ahsan Khan ◽  
Stephen Lacmata Tamekou ◽  
...  
Keyword(s):  
Ethyl Acetate ◽  
Antioxidant Properties ◽  
Psidium Guajava ◽  
Biological Properties ◽  
Persea Americana ◽  
Total Phenolic ◽  
Phenological Stage ◽  
Phenolic Contents ◽  
Hplc Profile ◽  
Dpph Scavenging

Phragmanthera capitata was reported to possess many biological properties making it a good candidate for the formulation of a phytomedicine with multiple effects. In this work, we studied some factors likely to modify these therapeutic properties with the aim to contribute to its standardization as an improved traditional medicine. P. capitata parasitizing Persea americana, Psidium guajava, and Podocarpus mannii were harvested at three phenological stages (vegetative, flowering, and fruiting stages). The extracts were prepared by maceration in n-hexane, ethyl acetate, ethanol, methanol, and distilled water. The total phenolic, flavonoid, flavonol, and tannin contents were measured using appropriate methods. The antioxidant potential of extracts was investigated using TAC, DPPH scavenging, and FRAP methods. The α-amylase and α-glucosidase inhibitory activities of extracts were determined using enzymatic methods. The ethyl acetate extracts with the best phenolic content were subjected to HPLC analysis. The extraction yields were higher with methanol. The ethyl acetate extract of P. capitata harvested from P. guajava showed a stable HPLC profile during the development of the plant, while extracts from the plant collected from P. americana and P. mannii showed both qualitative and quantitative variations according to phonological stages of the plant. The inhibition of α-amylase was more pronounced for P. capitata harvested from P. guajava, decreasing during flowering and fruiting, while inhibition of α-glucosidase was not influenced by the phenological stage and the host of the plant. The α-amylase inhibitors were better extracted by ethyl acetate and those of α-glucosidase by ethanol or methanol. The phenolic contents and antioxidant properties of the extracts were influenced by the phenological stage of P. capitata and its hosts. These results suggest that it is preferable to harvest P. capitata during flowering or during fruiting stages on any host. None of the used solvents permitted an optimal extraction of active principles form P. capitata, suggesting that the mixture of solvents must be considered in further studies.

Nipaecoccus nipae. [Distribution map].

2005 ◽  
Author(s):  
Keyword(s):  
Central America ◽  
Psidium Guajava ◽  
Virgin Islands ◽  
Persea Americana ◽  
Cayman Islands ◽  
Distribution Map ◽  
British Virgin Islands ◽  
Central Russia ◽  
New Distribution ◽  
Distribution In Europe

Abstract A new distribution map is provided for Nipaecoccus nipae (Maskell) Hemiptera: Coccoidea: Pseudococcidae Hosts: Avocado (Persea americana), guava (Psidium guajava), palms and many other hosts. Information is given on the geographical distribution in EUROPE, Austria, Belgium, Czechoslovakia (former), France, Hungary, Italy, Poland, Portugal, Madeira, Russia, Central Russia, Spain, Canary Islands, UK, ASIA, China, Fujian, Guangxi, Hainan, Republic of Georgia, Indonesia, Java, Korea Republic, Turkey, AFRICA, Algeria, Madagascar, Morocco, South Africa, Zimbabwe, NORTH AMERICA, Mexico, USA, California, Florida, Hawaii, Louisiana, CENTRAL AMERICA & CARIBBEAN, Antigua and Barbuda, Bahamas, Barbados, Belize, Bermuda, British Virgin Islands, Cayman Islands, Costa Rica, Cuba, Dominica, Dominican Republic, El Salvador, Grenada, Guadeloupe, Guatemala, Jamaica, Nicaragua, Panama, Puerto, Rico, St Kitts-Nevis, St Lucia, St Vincent and Grenadines, Trinidad and Tobago, United States Virgin Islands, SOUTH AMERICA, Argentina, Brazil, Parana, Rio de Janeiro, Sao Paulo, Colombia, Ecuador, Guyana, Peru, Suriname, Venezuela, OCEANIA, Fed. States of Micronesia, Guam, Samoa.

scholarly journals Temperatura letal de diferentes plantas frutíferas tropicais

Bragantia ◽  
1996 ◽  
Vol 55 (2) ◽  
pp. 201-235
Author(s):  
Paulo Cesar Sentelhas ◽  
Clovis Toledo Piza Júnior ◽  
José Maria Monteiro Sigristi ◽  
Ryosuke Kavati ◽  
Marco Túlio Parodi
Keyword(s):  
Psidium Guajava ◽  
Persea Americana ◽  
Passiflora Edulis ◽  
Annona Reticulata

Com o objetivo de conhecer melhor o efeito das baixas temperaturas sobre as frutíferas de clima tropical e possibilitar o desenvolvimento de novas variedades, mais tolerantes, simularam-se geadas em câmaras frigoríficas para a determinação da temperatura letal de diferentes plantas frutíferas tropicais. Os resultados permitiram classificar as espécies em três grupos: Grupo I - moderada tolerância (-4°C): condessa (Annona reticulata); goiaba (Psidium guajava); acerola (Malpighia glabra) e abacate (Persea americana) var. Geada; Grupo II - média tolerância (-5°C): conde (A. squamosa); araticum-mirim (Rollinea spp.); anona-do-brejo (A. glabra); falsa-gravioleira (A. montana); araticum-de-folha-miúda (R. ermaginata) e maracujá-amarelo (Passiflora edulis f. flavicarpa); Grupo III - acentuada tolerância (-6°C): cherimóia (A. cherimola).

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