Sistema Regional de Información
en línea para Revistas Científicas de América Latina,
el Caribe, España y Portugal

This article will analyze the role of Kichwa-Caranqui women in the community of Cashaloma in the custody of memory and in the (re)creation of the political history of the community, the locality, and the revision of one of the most important public policies in Latin America: the Agrarian Reform. The text contains the self-reflection on the process undertaken with the community of Cashaloma, from research, the creation of “memory materials” and the artistic-political re-creation of the history of the community. From a historical and anthropological perspective, through the lens of structural heterogeneity and feminist history, and the use of ethnography as the methodology, the voices of Kichwa-Caranqui women have been situated at the center, to identify: what “hidden stories” are shown in the female narrative spaces? What differences arise between female and male voices when relating the story? What is the relationship between the narration of history and the configuration of political subjects? And finally, the text dialogues with the question: can the (re)creation of memory be analyzed as a political tool?

In the context of two internship projects, one at the Smithsonian National Museum of the American Indian (NMAI) in the United States and the other at the Museo Universitario Universidad de Antioquia (MUUA) in Colombia, this article contrasts how artisans and indigenous communities of Latin America are represented in exhibitions. I build on the Study Up and Critical Museum Studies perspective to analyze the colonial roots of museums in both countries and how they are perpetuated or confronted through current exhibition-making. By methodologically collecting ethnographic and archival records, this essay questions the exercise of curatorial power and the role of anthropology, the anthropologist, and subaltern groups.  

In this article, we offer an outline for a biography of the traditional miraña singer Luis Neeba Gwajko (1943-2009), who dedicated his life to the miraña word and was widely recognized for his role as a traditional singer, among other aspects. Thus, based on interviews with Miraña family and friends, and researchers, state agents and missionaries who visited the territory, we write about Luis Gwajko's life, focusing on his youth in the context of displacement, his importance for the traditional management of the Miraña territory, his relationship with researchers, and, above all, his own documentation work of the miraña dances and songs as an exceptional case of documentation that was intended for future miraña generations in new territories and that today is in the Neeba Gwajko Archive of the Digital Archive of Indigenous Languages of the Amazon.

This case report summarizes the results of a partial stage in the reorganization process of the photographic archive of the Gold Museum of the Banco de la República, which began in 2021. This stage consisted of the diagnostic and historical appraisal of the visual material safeguarded there. The document outlines the procedure carried out, which entailed a close dialogue between history and archival science, presents the main results of this appraisal, and offers a brief reflection on the methodological challenges that emerged.

This article offers a reflection on the uses and meanings of archives in anthropology, based on research centered on the personal archive of Brazilian anthropologist Mariza Corrêa, who conducted studies on the history of anthropology and gender. Drawing on concerns shared by those who conduct research in archives, the article addresses both theoretical issues regarding the discipline's relationship with these materials and practical aspects related to their material and institutional conditions. It argues that archives not only preserve documents, but also serve as active spaces of interpretation, memory, and the production of new meanings within the anthropological field.

The effect of high hydrostatic pressure (HHP) on the inactivation of Escherichia coli O157:H7 in passion fruit juice (Passiflora edulis) was determined, some physicochemical and aromatic properties of the inoculated juice were evaluated. A 33 statistical design was used considering pressure, temperature and treatment time as factors (150, 200, 250 MPa; 25, 35, 45 º C; 0, 10, 20 min). A quadratic model was applied to optimize the process conditions using the response surface methodology.  E. coli was determined in stocked juice (6 days, 4 ºC). The volatile profile was analyzed using the headspace solid phase microextraction technique (HS-SPME) and (GC-MS). It was observed that from 150 MPa and 35 ºC, E. coli is totally inactivated. The treatments have no effect on the total soluble solids (TSS) of the juice, which suggest acceptability by consumers. Regarding the volatile profile, the alcohols and esters responsible for the aroma characteristic of passion fruit decreased their concentration (16 %) at 45 º C. The optimal conditions to obtain a microbiological safe passion fruit juice, preserving its aromatic composition, TSS and pH are 200 MPa, 35 º C and 10 min.

This study provides an in-depth genome analysis of Bacillusparalicheniformis AA1, a bacterial strain isolated from atraditional milpa farming system in Sonora, Mexico. Thegenomic analysis revealed a high level of completeness,demonstrated by the presence of a diverse and functionallysignificant repertoire of genes associated with fundamentalbiological processes, including nutrient assimilation, stressresponse, and cellular regulation. Notably, the genome alsocontains genes responsible for the biosynthesis of secondary metabolites, highlighting its potential for biotechnological applications. Taxonomic classification was rigorously conducted using integrated genome-wide approaches, which definitively confirmed the identification of iso late AA1 as belonging to the species Bacillus paralicheniformis. Comparative genomic analysis further established a high degree of genetic similarity between AA1 and other B. paralicheniformis strains with well-characterized biotechnological capabilities. This similarity strongly suggests that AA1 harbors genetic elements responsible for the synthesis of antimicrobial compounds, enzymes with industrial relevance, and metabolites that promote plant growth. The findings underscore the potential of Bacillus paralicheniformis AA1 as a valuable resource for biotechnology and sustainable agriculture. By enhancing our understanding of microbial diversity within traditional agroecosystems, this study contributes to the broader knowledge base required for the development of innovative agricultural practices. Future research should focus on functional validation of key genes to fully unlock AA1’s potential as a bioresource for antimicrobial production, enzyme synthesis, and crop enhancement, paving the way for its application in environmentally sustainable farming systems.

Zaya (Amoreuxia palmatifida) is a herbaceous plant found in northwest Mexico, particularly in the state of Sonora, where it has been historically consumed by its first settlers due to its nutritional and medicinal properties. Despite its importance, there is little information about the phytochemical compounds present in Zaya, its antioxidant activity and erythroprotective effect. Therefore, this study aimed to identify and quantify some of the compounds of interest related to the antioxidant capacity and erythroprotective effect of the plant. The results show that ethanolic extracts of zaya leaf (LE), root (RE) and stem (SE) contain the highest amount of phenols, tannins, flavonoids, chlorophylls and carotenoids, compared to extracts with leaf ethyl acetate (LEA), root (REA), and stem (SEA). Antioxidant activity was highest in LE by DPPH (61.27 ± 1.03 % of inhibition), ABTS (58.21 ± 0.48 % of inhibition) and FRAP (132.44 ± 5.23). All Zaya extracts had erythroprotective effect on O+ (80 to 87 %), followed by B+ (22 - 85 %) and then with A+ (38 - 60 %). In the cytotoxic assay, the highest percentage of hemolysis (41 - 50 %) occurred in blood type B+ with REA, RE, LEA and LE, while the lowest was in blood type O+. Therefore, LE contains the best secondary metabolites that confer greater antioxidant and erythroprocteric capacity without causing toxicity.

Electrospun poly (methyl methacrylate) (PMMA) microfibers were combined with ZnO to enhance the photodegradation of dye molecules. The microstructural characteristic of fibrous material used for the decomposition of methylene blue (MB) present in aqueous solutions under dark and sunlight irradiation was studied using UV-Vis absorption and photoluminescence spectroscopy. The PMMA fibrous membrane was embedded with ZnO particles using the low temperature heat treatment providing better membrane handling and changing its morphology. The average diameter of fibrous composite varied between 1,5 ± 0,26 to 2,5 ± 0,36 µm, influenced by the thermal treatment and the ZnO addition. The EDX analysis indicated the presence and homogenous distribution of Zn and O well over on PMMA fibrous, also by FTIR, DRX and TGA analysis corroborates the presence and composition of ZnO. The dispersion of ZnO in the polymer matrix influences the roughness and contact angle, important characteristics in the degradation of the dye. Dye molecule discoloration with composite PMMA/ZnO fibers was better in the sunlight irradiation (96% MB degradation) compared with the dark conditions (< 2% MB degradation). The new strategy of material synthesis for photocatalytic activity suitable for treatment for waste water effluents.

The fruit of Parmentiera aculeata has been used locally for its medicinal properties, but its bioactive compounds had not been characterized. Thus, to identify and quantify its nutraceutical and nutritional compounds, we used UPLC-Q-TOF-MS and untargeted metabolomics, detecting 725 metabolites, including anticancer compounds (genkwanin, hespiridin, and phenylketaldoxime) and antidiabetics (metformin). We also used HPLC-DAD to quantify the phenolics cyanidin, catechin, and p-coumaric, 4-hydroxybenzoic, gallic and chlorogenic acids (50, 70, 80, 210, 220 and 340 µg g–1 respectively) and GC-MS to analyze the vitamin profile (β-carotene content < 2.7 ng.mg–1). Fructose, glucose and sucrose were quantified by HPLC-ELSD at 3.06, 2.77 and 78.0 mg.100 g–1, respectively. Atomic emission spectra showed the content of K, Ca, P, Mg, Na, Fe, Zn to be 13 261.37, 1 114.77, 1 048.27, 932.06, 300.53, 22.03, 27.27 mg kg–1, respectively. Palmitic, heptadecanoic, stearic, oleic, linoleic, arachidic, linolenic, heneicosanoic, tricosanoic were identified and quantified as the primary fatty acids using a mixture of 37 standards. These findings corroborate the medicinal, nutraceutical and nutritional contributions of this versatile fruit that show their potential as a high value-added edible crop.