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Journal articles on the topic 'Penja pepper'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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1

Djoulde, Kani, Boukar Ousman, Abboubakar Hamadjam, Laurent Bitjoka, and Clergé Tchiegang. "Classification of Pepper Seeds by Machine Learning Using Color Filter Array Images." Journal of Imaging 10, no. 2 (2024): 41. http://dx.doi.org/10.3390/jimaging10020041.

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The purpose of this work is to classify pepper seeds using color filter array (CFA) images. This study focused specifically on Penja pepper, which is found in the Litoral region of Cameroon and is a type of Piper nigrum. India and Brazil are the largest producers of this variety of pepper, although the production of Penja pepper is not as significant in terms of quantity compared to other major producers. However, it is still highly sought after and one of the most expensive types of pepper on the market. It can be difficult for humans to distinguish between different types of peppers based so

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2

Hervé, Tchékoté, Chamdjou Tchamdjou J.B, Kamajou François, Ramasawmy B, and Nguema Ndoutoumou P. "RAIT ANALYSIS OF PENJA PEPPER (PEPER NIGRUM L.) PRODUCTION DETERMINANTS IN THE MUNGO DIVISION, LITTORAL REGION, CAMEROON." EPH - International Journal of Agriculture and Environmental Research 5, no. 2 (2019): 32–39. http://dx.doi.org/10.53555/eijaer.v5i1.49.

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This article seeks to identify and analyze the determinants of the Penja Pepper production. The survey focused 42 producers from whom data were collected and analyzed using Ordinary Least Squares method. The results of this analysis present the age of the producers and type of plants as the main factors having a negative impact on pepper production. They are significant at 10% and are negatively correlated with the production. In addition, on an average area of 1,675 ha, producers produce an average of 739.5 kg of dry Penja pepper and sell at an average price of 5084.37 CFA / kg. This producti

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3

Ndumbe, Louis Njie, and Audrey Pascale Ndokon. "The Contribution of Pipper nigrum L. to the Livelihoods of the Main Value Chain Actors in Njombe-Penja Sub-Division of the Littoral Region of Cameroon." Asian Journal of Research in Agriculture and Forestry 9, no. 4 (2023): 283–95. http://dx.doi.org/10.9734/ajraf/2023/v9i4257.

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The main objective of this study was to contribute to the sustainable trade of pipper nigrum L. from the forest area of Njombe-Penja for improved livelihoods of the actors involved in the value chain and poverty reduction. Despite the availability and the importance of non-timbers forests products in poverty reduction, sustainable livelihoods, food security, and conservation of natural resources, the market chain of Pipper Nigrum L. is still poorly understood as no study has yet been done on the contribution of white pepper to the livelihoods of the main value chain actors in Njombe-Penja sub-

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4

Petchayo Tigang, Sandrine, James Michel Tchotet Tchoumi, Jolanda Roux, et al. "Armillaria root rot threatens Cameroon’s Penja pepper (Piper nigrum L.)." Tropical Plant Pathology 45, no. 5 (2020): 534–43. http://dx.doi.org/10.1007/s40858-020-00361-w.

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5

TAMBI, MBU DANIEL, and TCHUMELA TCHOUPUA CÉDRIC. "WHITE PEPPER (Piper nigrum) PRODUCTION AND THE CHALLENGE OF POVERTY REDUCTION IN PENJA, CAMEROON." Asian Journal of Agriculture and Allied Sciences 2, no. 1 (2019): 1–11. http://dx.doi.org/10.56557/ajaas/2019/v2i110.

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6

Joly Dzokou, Victor, Nicaise Lontchi Fofe, Brice Hermann Kamgaing Kouam, Aoudou Yaouba, and Joseph Lebel Tamesse. "Fauna Pests Infesting Pepper (<i>Piper nigrum</i> L.) in Penja-Cameroon." American Journal of Entomology 5, no. 2 (2021): 32. http://dx.doi.org/10.11648/j.aje.20210502.13.

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7

Abdou Nourou, Kone Nsangou, Mboussi Serge Bertrand, Alain Heu, Kenmoe Tchouankam Patrick, Songmi Sedric Gerryco, and Jules Patrice Ngoh Dooh. "Invitro Evaluation of the Antifungal Effect of the Aqueous Extract of Erigeron floribundus on Colletotrichum gloeosporioides, the Causal Agent of Anthracnose in Pepper (Piper nigrum)." International Journal of Current Microbiology and Applied Sciences 13, no. 11 (2024): 202–15. https://doi.org/10.20546/ijcmas.2024.1311.024.

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Penja white pepper produced in Cameroon is subject to numerous attacks, the most severe of which is parasites, which are one of the causes of the drop in production. The chemical control used is profitable but harmful, not only to health, and not in line with IPG specifications. This study was conducted with the aim of contributing to the improvement of the control of the pepper pathogen through the use of aqueous extract of Erigeron floribundus. To achieve this objective, leaves showing symptoms of anthracnose were harvested for isolation of the pathogen on PDA medium, the pathogenicity test

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8

Mairomi, Harry Wirngo, Jude Ndzifon Kimengsi, Nyong Princely Awazi, Suiven John Paul Tume, Tosam Hycinth Ngong, and Banseka JaneFrances Yenlajai. "Innovation Diffusion in Land Resource Use Practices Around Cameroon’s Hollow Frontiers." Land 14, no. 2 (2025): 241. https://doi.org/10.3390/land14020241.

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Innovation diffusion has been extensively explored in several contexts, with little application to hollow frontiers—economically attractive areas with resource opportunities. This dearth of scientific data bedevils the design of resource-planning approaches for hollow frontiers. Using the innovation diffusion model as an analytical lens, this study; (1) maps key resources and actors engaged in the Mungo corridor hollow frontier, (2) analyzes the differential patterns of innovation and the forces that drive them, and (3) explores the management implications of resource-linked innovation diffusi

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9

Njeubong, J., Tsi E. Angwafo, Ze A. D. Mvondo, et al. "Evaluation of the determinants of socio-economic and cultural performance among producers in the production of Penja pepper (Peper nigrum) under geographical indication in the Moungo Division, Litoral Region- Cameroon." International Journal of Forest, Animal and Fisheries Research 3, no. 4 (2019): 164–75. http://dx.doi.org/10.22161/ijfaf.3.4.5.

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10

Wamuca Kimani, Yvonne. "Is Kenya’s Coffee Certification Mark Destined To Fail? A Legal Discussion." Commonwealth Law Review Journal 09 (2023): 50–58. http://dx.doi.org/10.55662/clrj.2023.903.

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Poor coffee prices, constant delays in payment, lack of government support and poor management of cooperatives have been the major challenges that have faced Kenya’s coffee sector for a while. Many Kenyan coffee farmers that had once reaped immense profits from the crop are no longer singing this tune. Although Kenyan coffee is considered among the best in the world, its farmers have been neglected despite it being Kenya’s major export. It was therefore a great feat when on 14th February, 2015 the Coffee Board of Kenya unveiled a certification mark of origin,‘Coffee Kenya So Rich, So Kenyan’,

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11

Puvača, Nikola. "Bioactive Compounds in Dietary Spices and Medicinal Plants." Journal of Agronomy, Technology and Engineering Management (JATEM) 5, no. 2 (2022): 704–11. http://dx.doi.org/10.55817/uhfo5592.

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Aim of this review is to show the most important bioactive compounds in hot spices such as black pepper (Piper nigrum L.), chilli pepper (Capsicum annuum L.) and medicinal plant such AS garlic (Allium sativum L.), and its modes of action. Piperine is an alkaloid responsible for the pungency of black pepper, along with chavicine (C17H19NO3) which is an alkaloid found in black pepper and other species of the genus Piper. It is one of the four geometric isomers of piperine. The active compound in black pepper is piperine (Bioperine; N-[(E,E)-Piperoyl]piperidine; Piperine (aliphatic); 1-[(2E,4E)-5

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12

Ezawa, Toshinari, Yutaka Inoue, Isamu Murata, et al. "Syntheses and crystal structures of two piperine derivatives." Acta Crystallographica Section E Crystallographic Communications 76, no. 5 (2020): 646–50. http://dx.doi.org/10.1107/s2056989020004648.

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The title compounds, 5-(2H-1,3-benzodioxol-5-yl)-N-cyclohexylpenta-2,4-dienamide, C18H21NO3 (I), and 5-(2H-1,3-benzodioxol-5-yl)-1-(pyrrolidin-1-yl)penta-2,4-dien-1-one C16H17NO3 (II), are derivatives of piperine, which is known as a pungent component of pepper. Their geometrical parameters are similar to those of the three polymorphs of piperine, which indicate conjugation of electrons over the length of the molecules. The extended structure of (I) features N—H...O amide hydrogen bonds, which generate C(4) [010] chains. The crystal of (II) features aromatic π–π stacking, as for two of three k

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13

Pereira, Regiane Aparecida Cruz, and Deise Aparecida Peralta. "MATEMÁTICA E O JOGO AVANÇANDO COM O RESTO RELATO DE EXPERIÊNCIA EM MEIO A PANDEMIA." Pesquisas e Práticas Educativas 1 (July 25, 2020): e202009. http://dx.doi.org/10.47321/pepe.2675-5149.2020.1.e202009.

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Diante do cenário proporcionado pela pandemia causada pelo Novo Corona Vírus, as escolas tiveram que se reinventar. Um grande desafio para todos da comunidade educacional! Em especial, nesse relato de experiência, retratamos a mudança enfrentada pela prática do professor diante da realidade frente a novas tecnologias, as quais na atual conjuntura, são fundamentais para promover a proximidade entre professor-aluno e até mesmo, aluno-aluno durante o período de distanciamento social físico. As aulas presenciais, foram substituídas por aulas online. Com tantas mudanças, também se faz necessário re

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14

"Acknowledgment of Abstract Graders." Circulation 124, suppl_21 (2011). https://doi.org/10.1161/circ.124.suppl_21.a401.

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We would like to thank the following abstract graders for their invaluable time and effort in reviewing abstracts for Scientific Sessions 2011. Brian Abbott Friederike K. Keating Geoffrey Abbott John Kern Evan Abel Karl Kern Benjamin S. Abella Morton Kern Theodore Abraham Amit Khera William T. Abraham Raymond J. Kim Stephan Achenbach Sue Kimm Michael A. Acker Carey D. Kimmelstiel Michael J. Ackerman Jacobo Kirsch David H. Adams Joel Kirsh M. Jacob Adams Lorrie Kirshenbaum Ted Adams Raj Kishore Philip A. Ades Masafumi Kitakaze Gail K. Adler Andre Kleber Sunil K. Agarwal Neil S. Kleiman Frank Ag

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15

"Acknowledgment of Abstract Graders." Circulation 126, suppl_21 (2012). https://doi.org/10.1161/circ.126.suppl_21.a401.

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Abbara, Suhny Georgiou, Demetrios naka, yoshifumi Abbott, Brian Gerszten, Robert Nakagawa, Yoshihisa Abbott, Geoffrey . Gewillig, Marc Nakamura, Kazufumi Abe, Jun-ichi Ghali, Jalal K. Nakamura, Yasuyuki Abella, Benjamin S. Ghanayem, Nancy Nakanishi, Toshio Abraham, Theodore Ghanayem, Nancy Nakatani, Toshio Abraham, William T. Ghosh, Shobha Narayan, Sanjiv M. Achenbach, Stephan Giachelli, Cecilia M. Natale, Andrea Acker, Michael A. Gidding, Samuel S. Natarajan, Rama Ackerman, Michael J. Gidding, Samuel S. Nattel, Stanley Adams, M. Jacob Gilchrist, Ian Nazarian, Saman Adams, Ted Giles, Thomas D.

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16

"Acknowledgment of Abstract Reviewers." Circulation 128, suppl_22 (2013). https://doi.org/10.1161/circ.128.suppl_22.a401.

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Abbara, Suhny Abbott, J Dawn Abe, Jun-ichi Abraham, William T. Achenbach, Stephan Ackerman, Michael J. Adabag, Selcuk Adams, Ted Adatya, Sirtaz Ades, Philip A. Ahmed, Bina Aikawa, Elena Ailawadi, Gorav Aizawa, Yoshifusa Aizer, Anthony Akagi, Teiji Akar, Fadi Akhter, Shahab Al Khatib, Sana Al-Ahmad, Amin Al-Mallah, Mouaz Alberts, Mark J. Alexander, John H.. Alexander, Mark Ali, Mo Allen, Larry A. Allen, Norrina B. Allison, Matthew A. Ambrosio, Giuseppe Amsterdam, Ezra Anand, Inder S. Andelfinger, Gregor Anderson, Mark E. Andresen, Brad Antoniucci, David Anversa, Piero Anyanwu, Ani Aon, Miguel A

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