Sweet Potato: A Potential Industrial and Staple Food Crop of Nigeria

1987 ◽  
Vol 16 (4) ◽  
pp. 178-181 ◽  
Author(s):  
S. C. O. Nwinyi
Keyword(s):  
Sweet Potato ◽  
World Economy ◽  
Ipomoea Batatas ◽  
Management Practices ◽  
Staple Food ◽  
Food Crop ◽  
Growing Period ◽  
Ecological Flexibility ◽  
Wide Range ◽  
The Impact

This article reviews the impact of sweet potato (Ipomoea batatas (L) Lam) on the world economy, its uses, and efforts in Nigeria to popularize its cultivation and acceptability. The potential and average yields of 87 and 20–30 t/ha respectively (over a three–six month growing period) under improved management practices, its ecological flexibility, its low input requirements, the wide range of recipes based on its flour, and easy propagation by vine cuttings distinguish the sweet potato as a potentially important industrial and staple food crop. Problems relating to sweetness, dominant flavour, and the colour of the cooked product are identified as ones requiring solution if its acceptability is to be enhanced.

Analisis Nutrisi Umbi Ubi Jalar (Ipomoea batatas (L.) Lam.) untuk Konsumsi Bayo dan Anak-anak Suku Dani di Distrik Kurulu Kabupaten Jayawijaya

Agrotek ◽  
2018 ◽  
Vol 3 (2) ◽  
Author(s):  
Andrew B. Pattikawa ◽  
Antonius Suparno ◽  
Saraswati Prabawardani
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Nutritional Value ◽  
Animal Feed ◽  
Ash Content ◽  
Infants And Children ◽  
Chemical Analyses ◽  
Food Crop ◽  
Sweet Potatoes ◽  
Development Center

<em>Sweet potato is an important staple food crop especially for the local people of Central Highlands Jayawijaya. There are many accessions that have always been maintained its existence to enrich their various uses. Traditionally, sweet potato accessions were grouped based on the utilization, such as for animal feed, cultural ceremonies, consumption for adults, as well as for infants and children. This study was aimed to analyze the nutritional value of sweet potatoes consumed by infants and children of the Dani tribe. Chemical analyses were conducted at the Laboratory of Post-Harvest Research and Development Center, Cimanggu, Bogor. The results showed that each of 4 (four) sweet potato accessions which were consumed by infants and children had good nutrient levels. Accession Sabe showed the highest water content (72.56%), vitamin C (72.71 mg/100 g), Fe (11.85 mg/100 g), and K levels (130.41 mg / 100 grams). The highest levels of protein (1.44%), fat (1.00%), energy (154.43 kkal/100 gram), carbohydrate (35.47%), starch (30.26%), reducing sugar (3.44%), riboflavin (0.18 mg/100 g), and vitamin A (574.40 grams IU/100 were produced by accession Manis. On the other hand, accession Saborok produced the highest value for ash content (1.32%), vitamin E (28.30 mg/100 g), and ?-carotene (64.69 ppm). The highest level of crude fiber (1.81 %) and thiamin (0.36 mg/100 g) was produced by accession Yuaiken.</em>

scholarly journals Effects of Process Parameters on the Color Quality of Anthocyanin-Based Colorants from Conventional and Microwave-Assisted Aqueous Extraction of Sweet Potato (Ipomoea batatas L.) Leaf Varieties

Proceedings ◽  
2020 ◽  
Vol 70 (1) ◽  
pp. 103
Author(s):  
Jin Mark D. G. Pagulayan ◽  
Aprille Suzette V. Mendoza ◽  
Fredelyn S. Gascon ◽  
Jan Carlo C. Aningat ◽  
Abigail S. Rustia ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Process Parameters ◽  
Ipomoea Batatas ◽  
Extraction Methods ◽  
Aqueous Extraction ◽  
Potato Leaf ◽  
Microwave Assisted ◽  
Color Quality ◽  
The Impact

The study aimed to evaluate the effects of process parameters (time and raw material weight (RMW)) of conventional (boiling for 10–45 min) and microwave-assisted (2–8 min) aqueous extraction on the color quality (i.e., lightness (L*), chroma (C*), and hue (H°) of anthocyanin –based colorants of red and Inubi sweet potato (Ipomoea batatas L.) leaves. Using response surface methodology, it was found that RMW and boiling time (BT) and microwave time (MT) generally had a significant (p < 0.05) effect on the color quality of the extract from both extraction methods. The effects were found to vary depending on the extraction method and variety of the leaves used. Both extraction methods produced a brown to brick-red extract from the Inubi variety that turned red-violet to pink when acidified. The red sweet potato leaves produced a deep violet colored extract that also turned red-violet when acidified. It is recommended that the anthocyanin content of the extracts be measured to validate the impact of the methods on the active agent. Nevertheless, the outcomes in this study may serve as baseline data for further studies on the potential of sweet potato leaf colorants (SPLC) as a colorant with functional properties.

scholarly journals Detection of Viruses in Sweetpotato from Honduras and Guatemala Augmented by Deep-Sequencing of Small-RNAs

Plant Disease ◽  
2012 ◽  
Vol 96 (10) ◽  
pp. 1430-1437 ◽  
Author(s):  
M. Kashif ◽  
S. Pietilä ◽  
K. Artola ◽  
R. A. C. Jones ◽  
A. K. Tugume ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Virus Strain ◽  
Deep Sequencing ◽  
Ipomoea Batatas ◽  
Plant Viruses ◽  
Virus Infections ◽  
Potato Leaf ◽  
Wide Range ◽  
Virus C ◽  
Small Rna Deep Sequencing

Sweetpotato (Ipomoea batatas) plants become infected with over 30 RNA or DNA viruses in different parts of the world but little is known about viruses infecting sweetpotato crops in Central America, the center of sweetpotato domestication. Small-RNA deep-sequencing (SRDS) analysis was used to detect viruses in sweetpotato in Honduras and Guatemala, which detected Sweet potato feathery mottle virus strain RC and Sweet potato virus C (Potyvirus spp.), Sweet potato chlorotic stunt virus strain WA (SPCSV-WA; Crinivirus sp.), Sweet potato leaf curl Georgia virus (Begomovirus sp.), and Sweet potato pakakuy virus strain B (synonym: Sweet potato badnavirus B). Results were confirmed by polymerase chain reaction and sequencing of the amplicons. Four viruses were detected in a sweetpotato sample from the Galapagos Islands. Serological assays available to two of the five viruses gave results consistent with those obtained by SRDS, and were negative for six additional sweetpotato viruses tested. Plants coinfected with SPCSV-WA and one to two other viruses displayed severe foliar symptoms of epinasty and leaf malformation, purpling, vein banding, or chlorosis. The results suggest that SRDS is suitable for use as a universal, robust, and reliable method for detection of plant viruses, and especially useful for determining virus infections in crops infected with a wide range of unrelated viruses.

scholarly journals Effect of extrusion-cooking in total carotenoids content in cream and orange flesh sweet potato cultivars

2008 ◽  
Vol 26 (1) ◽  
pp. 112-115 ◽  
Author(s):  
Marcos José de O Fonseca ◽  
Antonio G Soares ◽  
Murillo Freire Junior ◽  
Dejair L de Almeida ◽  
José Luiz R Ascheri
Keyword(s):  
Vitamin A ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Potato Cultivars ◽  
Extrusion Cooking ◽  
Potato Flour ◽  
Food Crop ◽  
Total Carotenoids ◽  
Sweet Potato Flour

Sweet potato (Ipomoea batatas) is a food crop that supplies energy, minerals and vitamins C and B. Some cultivars are very rich in carotenoids (pro-vitamin A). In this study were evaluated and compared the total carotenoids content of two cultivars and the losses on the dehydrated extruded sweet potato flour. Samples from organic and conventional crops were analyzed, in the form of fresh and dehydrated extruded samples. Total carotenoids content of the fresh product, expressed on wet basis, was of 437 µg 100 g-1 for the cream cultivar and 10,12 µg 100 g-1 for the orange cultivar. After dehydration, losses of total carotenoids were of 41% and 38%, respectively. The fresh orange cultivar presented high total carotenoids content in comparison to the cream cultivar. The extruded orange sweet potato flour showed the lowest losses in total carotenoids. Therefore, the processed flour of orange sweet potato could be used to obtain pre-gelatinized extruded flour with high total carotenoids content.

scholarly journals The Effects of Temperature and Potassium Fertilizer on the Growth, Yield, and Biochemical Parameters of Ipomoea batatas var. Antin-1

2020 ◽  
Vol 73 (3) ◽  
Author(s):  
Rini Sulistiani ◽  
Rosmayati ◽  
Luthfi A. M. Siregar ◽  
Fauziyah Harahap
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Growth Yield ◽  
Glucose Production ◽  
Morphological Properties ◽  
Anthocyanin Content ◽  
Potassium Fertilizer ◽  
Glucose Content ◽  
Four Levels ◽  
The Impact

The impact of temperature and potassium fertilizers on the growth, yield, and basic biochemical characteristics of sweet potato, <em>Ipomoea batatas </em>var. Antin- 1, was investigated in lowland and highland terrains. In this study we aimed to determine the different traits of the sweet potato, based on its morphology, physiology, and biochemical composition, following treatments with a potassium fertilizer at different temperatures. The study was undertaken using a nested factorial design. The first factor was temperature at each of the two sites: T1 (lowland) and T2 (highland). The second factor was potassium fertilizer (K<sub>2</sub>O) nested within the temperature factor and consisting of four levels of K: K0 (0 kg/ha), K1 (50 kg/ha), K2 (100 kg/ha), and K3 (150 kg/ha). Each potassium treatment was replicated three times at each location. Plant vegetative growth in the lowland region, with a daily average temperature of 26.8 °C, tended to be more bushy, with several different morphological properties: The main stem was longer (160.7 cm) and spreading, the stem diameter was greater, and the petioles were significantly longer in the lowland plants compared with the highland plants; however, no differences were observed in the leaf characteristics. The differential temperature (depending on altitude) resulted in significant differences in relative growth rates (RGR) and net assimilation rates (NAR); the values for RGR-1 and NAR-1 in the lowlands were higher than those in the highlands. The tuber weight, yield index, anthocyanin accumulation, and glucose content were significantly higher in the highland crops than in the lowland plants, which grew under relatively higher temperatures. Potassium applications caused significant differences in the anthocyanin content (mg/100 g fresh weight), anthocyanin production (kg/ha), and glucose production (kg/ha) at different locations.

scholarly journals PRODUKTIVITAS LAHAN, KOMPETISI, DAN TOLERANSI DARITIGA KLON UBIJALAR PADA SISTEM TUMPANG SARI DENGAN JAGUNG

EUGENIA ◽  
2016 ◽  
Vol 11 (1) ◽  
Author(s):  
Jeanne Martje Paulus
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Research Station ◽  
Food Crop ◽  
Land Productivity ◽  
Land Equivalent Ratio ◽  
Biotechnology Research ◽  
Planting Distance ◽  
Crop Biotechnology ◽  
Experimental Garden

ABSTRACT Paulus, J.M. 2005. Land Productivity, Competition, and Tolerance of Three Sweet Potato Clones Planted as Intercroping with Maize. Eugenia 11 (1): 1-7. A field experiment was conducted in Cikeumeuh Experimental Garden of Food Crop Biotechnology Research Station (BAUTBIO) Bogor to study Land Equivalent Ratio (LER), Competition Ratio (CR), and Stress Tolerance (TOL) of sweet potato and maize. The highest tuber yiled of sweet potato was 16,83 ton ha-[1] gained by CIP-2 at 100 cm planting distance of maize and the highest maize yiled was 4,50 ton ha-1 Cangkuang in intercropping with Cangkung clone. The LER, CR, and TOL, CIP-2 and SQ were suitable for intercrops at all planting distance but Cangkuang was not suitable for intercrops with maize. Keywords: Ipomoea batatas, clon, intercroping [1] Jurusan Budidaya Pertanian, Fakultas Pertanian UNSRAT Manado, 95115

scholarly journals Analysis of the Values of Enset (Enseteventricosum) in The Socio-Cultural Life of Thegurage of South-Central Ethiopia

2021 ◽  
Vol 04 (10) ◽  
Author(s):  
Eshettu Tesfaye Retta ◽  
Keyword(s):  
Cultural Values ◽  
Drug Loading ◽  
Methodological Approach ◽  
High Yield ◽  
Staple Food ◽  
Food Crop ◽  
Banana Plant ◽  
Central Ethiopia ◽  
South Central ◽  
Wide Range

Enset (Enseteventricosum) is a traditional multi-purpose crop mainly used as a staple/co-staple food crop over 20 million people in Ethiopia. The Gurage are sedentary agricultural people of patrilineal persuasion who speak a Semetic language and inhabit in a sparsely fertile semi-mountainous regionin south-central Ethiopia. Enset, their staple food crop, commonly called the “false banana plant”, is produced in abundance by each Gurage homestead. The objective of this study was to document the socio-cultural values of enset plant among the Gurage. In this study, a qualitative methodological approach is employed in extracting information from different sources on the subject in question. The study relied mainly on primary and secondary sources.According to findings, three types of food, viz, Kocho(fermented product from scraped pseudo stem grafted corm), Bulla(dehydrated juice), and Amicho (boiled corm) can be prepared from enset. As a food crop, it has useful attributes such as foods can be stored for long time, grow in wide range of environments, produces high yield per unit area and tolerates drought. It has irreplaceable role as a feed for animals. Enset starch is found to have higher and widely used as a tablet binder and dis-integrant and also in pharmaceutical gelling, drug loading and release processes. Moreover, enset shows high genetic diversity within a population which in turn renders resilience and food security against the ever-changing environmental factors and land use dynamics.Enset is totally involved in every aspects of the daily social and ritual life of the Gurage, who, with other several tribes in southwest Ethiopia, form what has been termed “the EnsetCulture Complex Area”. From birth, when the umbilicus is tied off with a fiber drawn from enset fronds, the life of the Gurage is enmeshed with various uses of enset, not the least of which is nutritional.

scholarly journals Portable PCR field-based detection of sweetpotato viruses

1970 ◽  
Vol 28 (3) ◽  
pp. 363-374
Author(s):  
J. Ssengo ◽  
P. Wasswa ◽  
S.B. Mukasa ◽  
A. Okiror ◽  
S. Kyamanywa
Keyword(s):  
Liquid Nitrogen ◽  
Sweet Potato ◽  
Rural Areas ◽  
Ipomoea Batatas ◽  
Virus Disease ◽  
Crop Protection ◽  
Extraction Procedure ◽  
Diagnostic Tools ◽  
Acid Extraction ◽  
The Impact

Sweetpotato (Ipomoea batatas Lam.) production is greatly constrained by viral infections, especially Sweet potato feathery mottle virus and Sweet potato chlorotic stunt virus that synergistically cause a severe sweetpotato virus disease. The impact of viruses is aggravated by the vegetative nature of the crop and inaccessibility to dependable diagnostic tools in rural areas where sweetpotato production is done. This makes it hard for seed inspectors to perform quality checks prior to use of vines for planting. The objective of this study was to develop a procedure that allows for detection of sweetpotato viruses on-site. This involved modification of the Lodhi et al. (1994) nucleic acid extraction procedure, by omitting some of the laboratory specific steps and varying the incubation time in liquid nitrogen, instead of the freezer. Incubation in liquid nitrogen for only 1.5 hours yielded as high quality RNA compared to that of the original protocol, when incubation was done at 4°C overnight in a freezer. Reverse transcriptase (RT) was run using a portable miniPCR thermocycler; and the resulting cDNA was amplified using this miniPCR machine instead of using a laboratory stationed conventional PCR thermocycler. The cDNA was efficiently amplified and amplicons were similar to those obtained with the original extraction protocol and subsequent amplification by the conventional RT-PCR. Our protocol reduced extraction time from about 16 hours for the original protocol, to about 2 hours and 45 minutes. If this tool is utilised by the crop protection departments, we believe it will contribute greatly towards sustainable sweetpotato production through making timely recommendations.

scholarly journals THE INFLUENCE OF CHINESE-AMERICAN TRADE RELATIONS ON CHINA's FOREIGN POLICY RELATING TO THE USA

2021 ◽  
Vol 5 (1) ◽  
pp. 65-73
Author(s):  
Jiang Junjing
Keyword(s):  
United States ◽  
Foreign Policy ◽  
World Economy ◽  
Negative Impact ◽  
The United States ◽  
Economic Benefits ◽  
Wide Range ◽  
The World ◽  
China’S Foreign Policy ◽  
The Impact

Based on a wide range of sources, the article analyzes the impact of China's trade and economic relations with the United States. Several periods of interaction between countries after the end of World War II are considered. Special attention is paid to the period of restoration of diplomatic relations since 1979. Based on various sources and historiography, the author analyzes the researchers' points of view on the impact of economic issues on the relations between the two countries. In the course of the research, the author came to the conclusion that an important aspect in the direction of the foreign economic policy of the People’s Republic of China in the first post-war years was the ideological factor. The article presents an analysis of changes in the vector of China's foreign policy in different periods. The main ways of interaction between the United States and China are described, depending on changing foreign policy doctrines. The reforms launched in 1978 provided China with economic growth and a growing prestige on the world stage, which is still present today. The rapprochement between the United States and China after the collapse of the Soviet Union in 1991 brought certain economic benefits for the two countries. However, the aggravation of relations between the countries in the new Millennium provides an opportunity for new assessments of the PRC's position on the world stage. Trump’s coming to power in the United States is regarded as an economic war between the two countries. China's increased investment capacity and technological independence make it an attractive partner for other countries, which in turn has a negative impact on trade with America. The most important thing in this situation is the fact that the globalization of the world economy caused by scientific and technological progress, including the rather close interweaving of the US and Chinese economies, contradicts the national interests of both countries, which are trying to strengthen their positions and role in the world economy. Based on the analyzed material, the author comes to the conclusion that recently the foreign policy relations between China and the United States directly depend on the economic interests of the parties.

scholarly journals Sweet Potato Canopy Architecture: Branching Pattern

1990 ◽  
Vol 115 (1) ◽  
pp. 33-38 ◽  
Author(s):  
Zana C. Somda ◽  
Stanley J. Kays
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Plant Density ◽  
Growing Season ◽  
Internode Length ◽  
Branching Pattern ◽  
Canopy Architecture ◽  
Growing Period ◽  
Branch Formation ◽  
Number Of Branches

The effect of the plant density (15, 30, 45 × 96-cm spacing) on the branching pattern `Jewel' sweet potato [Ipomoea batatas (L.) Lam.] was determined bi-weekly for 18 weeks. Plant density effects were significant for the number of branches formed and timing of branch formation. Plant density did not affect the type of branches formed (e.g., primary, secondary, and tertiary), but did alter the timing of induction during the growing season. By the end of the growing period, the ratios for the number of primary to secondary branches were 1.5:1, 1.3:1, and 0.6:1 at the 15-, 30-, and 45-cm spacing, respectively. Few tertiary branches were formed, but were present on some plants at each spacing. Tertiary branches most commonly occurred on plants at the widest spacing. While the number of branches per plant was highly plastic and inversely related to plant density, nodes per branch and internode length were not significantly affected. Average internode length per branch decreased with descending branch hierarchy (i,e., main stem < primary branch < secondary branch). `Jewel' sweet potato responded to increased space available largely through production of additional branches with the modification of branching pattern increasing as the season progressed.

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