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1
tesis de grado
Publicado 2024
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The study evaluated the INIA Real Sicaina and Shulay potato varieties for processing as frozen pre-fried potatoes, given the growing interest in the Peruvian agroindustry. These varieties were compared with imported ones under blanching and pre-frying treatments, highlighting the lack of prior research on local varieties. The main challenge lies in Peru's technological gap, where frozen pre-fried potatoes are not produced due to raw material quality and limited processes. This research tested new varieties and analyzed the impact of treatments on key indicators like color and moisture. The results showed that these varieties have the potential to meet industrial standards, especially under HTST treatment, with the Real Sicaina variety achieving comparable quality levels to imported varieties. This work promotes the development of the Peruvian agroindustry, providing a foundation for futu...
2
artículo
Publicado 2023
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The industrialization of potatoes in Peru constitutes a business opportunity to increase the supply of processed potatoes, generating added value for small producers. For this reason, it is important to have varieties suitable for frying and thus supply the potato value chain for the processing industry (french fries) and snacks (flakes). It is described the origin and genealogy of the clone UH-24 (“Bicentenaria”), its agronomic characteristics through the identification analysis, the way how it developed and multiplied in the greenhouse and in the field, as well as the evaluation process through the analysis of adaptation and efficiency in four environments of Lima region. The potato variety Bicentenaria has good production and adaptation capacity in the central coast of Peru, with a mean tuber yield of 43.2 t ha-1, compared to the commercial varieties Canchán and Diacol Capiro wit...
3
artículo
Publicado 2023
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The industrialization of potatoes in Peru constitutes a business opportunity to increase the supply of processed potatoes, generating added value for small producers. For this reason, it is important to have varieties suitable for frying and thus supply the potato value chain for the processing industry (french fries) and snacks (flakes). It is described the origin and genealogy of the clone UH-24 (“Bicentenaria”), its agronomic characteristics through the identification analysis, the way how it developed and multiplied in the greenhouse and in the field, as well as the evaluation process through the analysis of adaptation and efficiency in four environments of Lima region. The potato variety Bicentenaria has good production and adaptation capacity in the central coast of Peru, with a mean tuber yield of 43.2 t ha-1, compared to the commercial varieties Canchán and Diacol Capiro wit...
4
artículo
Publicado 2017
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The colors of native pigmented potatoes were extracted, purified and the anthocyanin spectra identified by FTIR and UV Visible in this solution. In the extract, the effect caused by different cooking processes (boiled, fried and microwaved) of native pigmented potatoes was quantified for total anthocyanins (CAT) and total polyphenols (PFT) before and after each process. The content of (CAT) in the native red potato (PST) and purple potato (PWQ) was 59.21 and 19.35 (mg cyanidin 3 glucoside / 100 g) respectively and once processed the potato (PST) decreases its (CAT) to 4.63 (mg cyanidin 3-glucoside / 100g) in the process of cooking by microwave oven, like potato (PWQ) at 1.31 (mg cyanidin 3-glucoside / 100g) in frying. The composition of (PFT) in potato (PST) and (PWQ) of 179.51 and 87.92 (mg gallic acid / 100g) respectively and after processing, are 125.27 (mg gallic acid / 100g) in the ...
5
artículo
Publicado 2017
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The colors of native pigmented potatoes were extracted, purified and the anthocyanin spectra identified by FTIR and UV Visible in this solution. In the extract, the effect caused by different cooking processes (boiled, fried and microwaved) of native pigmented potatoes was quantified for total anthocyanins (CAT) and total polyphenols (PFT) before and after each process. The content of (CAT) in the native red potato (PST) and purple potato (PWQ) was 59.21 and 19.35 (mg cyanidin 3 glucoside / 100 g) respectively and once processed the potato (PST) decreases its (CAT) to 4.63 (mg cyanidin 3-glucoside / 100g) in the process of cooking by microwave oven, like potato (PWQ) at 1.31 (mg cyanidin 3-glucoside / 100g) in frying. The composition of (PFT) in potato (PST) and (PWQ) of 179.51 and 87.92 (mg gallic acid / 100g) respectively and after processing, are 125.27 (mg gallic acid / 100g) in the ...
6
artículo
Publicado 2017
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The colors of native pigmented potatoes were extracted, purified and the anthocyanin spectra identified by FTIR and UV Visible in this solution. In the extract, the effect caused by different cooking processes (boiled, fried and microwaved) of native pigmented potatoes was quantified for total anthocyanins (CAT) and total polyphenols (PFT) before and after each process. The content of (CAT) in the native red potato (PST) and purple potato (PWQ) was 59.21 and 19.35 (mg cyanidin 3 glucoside / 100 g) respectively and once processed the potato (PST) decreases its (CAT) to 4.63 (mg cyanidin 3-glucoside / 100g) in the process of cooking by microwave oven, like potato (PWQ) at 1.31 (mg cyanidin 3-glucoside / 100g) in frying. The composition of (PFT) in potato (PST) and (PWQ) of 179.51 and 87.92 (mg gallic acid / 100g) respectively and after processing, are 125.27 (mg gallic acid / 100g) in the ...
7
artículo
Publicado 2017
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The colors of native pigmented potatoes were extracted, purified and the anthocyanin spectra identified by FTIR and UV Visible in this solution. In the extract, the effect caused by different cooking processes (boiled, fried and microwaved) of native pigmented potatoes was quantified for total anthocyanins (CAT) and total polyphenols (PFT) before and after each process. The content of (CAT) in the native red potato (PST) and purple potato (PWQ) was 59.21 and 19.35 (mg cyanidin 3 glucoside / 100 g) respectively and once processed the potato (PST) decreases its (CAT) to 4.63 (mg cyanidin 3-glucoside / 100g) in the process of cooking by microwave oven, like potato (PWQ) at 1.31 (mg cyanidin 3-glucoside / 100g) in frying. The composition of (PFT) in potato (PST) and (PWQ) of 179.51 and 87.92 (mg gallic acid / 100g) respectively and after processing, are 125.27 (mg gallic acid / 100g) in the ...
8
artículo
Publicado 2020
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Accurate determination of plant water status is mandatory to optimize irrigation scheduling and thus maximize yield. Infrared thermography (IRT) can be used as a proxy for detecting stomatal closure as a measure of plant water stress. In this study, an open-source software (Thermal Image Processor (TIPCIP)) that includes image processing techniques such as thermal-visible image segmentation and morphological operations was developed to estimate the crop water stress index (CWSI) in potato crops. Results were compared to the CWSI derived from thermocouples where a high correlation was found ( = 0.84). To evaluate the effectiveness of the software, two experiments were implemented. TIPCIP-based canopy temperature was used to estimate CWSI throughout the growing season, in a humid environment. Two treatments with different irrigation timings were established based on CWSI thresholds: 0.4 (T...
9
artículo
Publicado 2017
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This research was aimed to evaluate the effect of Agricultural Extension Strategy::School of Camp,in the training potato farmers for use as seed, in the process of strengthening its technologicalcapabilities and the adoption of techniques for obtaining greater crop productivity due to lack ofinformation in this sense that describes not only the methodological and strategic needs of the type“input intellectuals” to which must answer all agenda that has this purpose, taking into consideration,quantifiers parameters as yields per area, the quality of the harvested product and this coupled withthe degree of evolution of the strengths of their capabilities in the development of the educationalprocess of teaching - learning and achieve the expected results, since the programs or trainingprojects agricultural producers and especially for those who are engaged in seed production shouldrespon...
10
artículo
Publicado 2024
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The quality of potatoes for processing depends on varietal, environmental and crop management factors, and the consumption of potato products has increased.The objective of the research was to determine the effect of calcareous amendments on the production and frying quality of potatoes potato cv. Bicentenaria under high Andean conditions. The research was carried out in the rural community of Canín at Checras district (Lima) altitude of 3880 masl. The climate of the locality is humid and cold, with an annual rainfall of 800 mm and acid soils (pH 5.0) of sandy-clay texture. Five liming treatments and a control without liming were applied to the soil (agricultural lime 500 kg ha-1 and carbonatite 500, 1000, 1500 and 2000 kg ha-1). Agronomic and biochemical characteristics of the tuber were evaluated and sensory analysis was performed for potato frying. Data were analyzed statistica...
11
artículo
Publicado 2024
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The quality of potatoes for processing depends on varietal, environmental and crop management factors, and the consumption of potato products has increased.The objective of the research was to determine the effect of calcareous amendments on the production and frying quality of potatoes potato cv. Bicentenaria under high Andean conditions. The research was carried out in the rural community of Canín at Checras district (Lima) altitude of 3880 masl. The climate of the locality is humid and cold, with an annual rainfall of 800 mm and acid soils (pH 5.0) of sandy-clay texture. Five liming treatments and a control without liming were applied to the soil (agricultural lime 500 kg ha-1 and carbonatite 500, 1000, 1500 and 2000 kg ha-1). Agronomic and biochemical characteristics of the tuber were evaluated and sensory analysis was performed for potato frying. Data were analyzed statistica...
12
artículo
Publicado 1979
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The present work proposes to examine the evolution of the real prices of some food products in the Lima market for the period 53-74, emphasizing the case of the potato. it is about beginning to develop a line of research on the terms of rural-urban exchange and its trajectory in the recent past. It is undoubtedly a complex problem, but it is also decisive for understanding how such heterogeneous forms of production coexist and are articulated, that is, one of the basic characteristics of our economic process, which is uneven development.
13
artículo
Publicado 2024
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Organic agriculture is highly valued internationally as it results in significant economic gains for the value chains of various food products. Within the organic certification process, the identification of agrochemical residues in food is vital for screening production lots that come from organic and/or conventional crops. Currently, the analysis of agrochemical residues is performed with highly sophisticated techniques such as liquid chromatography (LC) and gas chromatography (GC) coupled to mass detectors (MS), these techniques are highly expensive and complex. The present review provides insights into how the combination of vibrational spectroscopy with appropriate chemometric techniques (multivariate statistics) can be used to develop methods for classification and quantification of agrochemical residues in various food matrices in a simple way, avoiding the use of toxic reagents, ...
14
tesis de maestría
Publicado 2023
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La presente investigación denominada “Actividades interactivas con Jclic-Hot potatoes para lograr la competencia resuelve problemas de movimiento, forma y localización”, de enfoque cuantitativo, y tipo cuasi experimental, tuvo el objetivo de determinar en qué medida influyen las actividades interactivas ut supra, en el logro de la competencia matemática mencionada, en alumnas de 4° “B” de Educación Secundaria de la Institución Educativa Sara Antonieta Bullón Lamadrid de la ciudad de Lambayeque, en el año 2019, aplicando el modelo de diseño instruccional ADDIE El estudio consideró una muestra estadística conformada por los grupos experimental y control con 30 discentes de cuarto grado, pertenecientes a una población de 210 alumnas. Se aplicó el instrumento ficha de registro y la data obtenida fue procesada mediante el estadístico T Student, interpretándose y discut...
15
tesis de grado
Publicado 2024
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Potatoes have a high production demand in the world, but they are constantly under threat from germination to harvest due to pest infestation; for control, insecticides are used, which are highly polluting chemicals, systemic insecticides of the carbamate group due to their mode of action, with contact activity against different pests. This research sought to evaluate the influence of carbofuran on soil macronutrients in the District of Chongos Bajo, in the highlands of Peru. Through the experimental study method, with a quantitative research approach in a deductive process. We worked with a representative area of 10 m2 with 6 analyses of soil samples every 15 days in a period of 3 months. The results showed a loss value of 7.85% of total nitrogen, 14.05% of available phosphorus and 10% of available potassium in the period of 90 days, where there was a variation in the pH in water with a...
16
tesis de grado
Publicado 2025
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Potato is the third most consumed food fruit worldwide by humans and on many occasions at planting time it is affected by numerous fungal species that generate various diseases in potato leaves and tubers, causing great economic losses and obtaining a poor crop production. The objective of this study was to design a proof of concept for the early identification of late blight disease in potato leaves using an unmanned aerial vehicle (UAV), under the terms of technical and economic evaluation of the solution and the concepts of using an embedded system. The late blight identification processes were exposed to the technical and economic evaluation of the solution from three proposed solutions, solution S 1, solution S 2 and solution S 3. The three provided solutions were compared, and the following results were obtained, the technical values Xi obtained the results of 0.86, 0.68 and 0.75 a...
17
artículo
Publicado 2018
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This research was supported by the Programa Nacional de Innovación para la Competitividad y Productividad (Innovate Perú), under the contract N° 223-FINCyT-IA-2013 and Fondo Nacional de Desarrollo Científico, Tecnológico y de Innovación Tecnológica (FON-DECYT), research project PROCYT N° 316-2011-CONCYTEC-OAJ from Peru.
18
artículo
Publicado 2019
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Acetylation is a chemical modification of the starch structure that consists of replacing a certain number of hydroxyl groups with acetyl groups using acetic anhydride. This process depends on certain factors, such as starch source, acetic anhydride concentration, reaction time and pH. The aim of this study was to characterize the native starch (isolated from a commercial potato ‘Única’ variety) and the acetylated starches by FT-IR spectroscopy, and evaluate their physicochemical (amylose content, color) and functional properties (swelling power, solubility, water retention capacity, thermal properties, and pasting profile). The evaluated samples were native starch (AN) and modified starches by acetylation with different concentrations of 5 %, 10 % and 15 % acetic anhydride (AAc5%, AAc10% and AAc15%). The apparent amylose contents for native starch and acetylated starch (AAc15%) wer...
19
artículo
Publicado 2008
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The goal of this research work is the design of a cleaner process for the production of fuel ethanol sweet potato. Applying the principles of conceptual design, Pinch analysis and the use of simulators chem cad and pinch cad, it is determined that the process with molecular sieves is the most effective to get ethanol from 99.5% purity with a power demand of 1400 Kj/kg of ethanol. We conclude that these results impacting positively on the economy of Peru by establishing a path of sustainable development both technically, economically, socially and environmentally.
20
artículo
Publicado 2008
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The goal of this research work is the design of a cleaner process for the production of fuel ethanol sweet potato. Applying the principles of conceptual design, Pinch analysis and the use of simulators chem cad and pinch cad, it is determined that the process with molecular sieves is the most effective to get ethanol from 99.5% purity with a power demand of 1400 Kj/kg of ethanol. We conclude that these results impacting positively on the economy of Peru by establishing a path of sustainable development both technically, economically, socially and environmentally.
