scholarly journals Physicochemical characteristics and resistant starch of different varieties of banana from Taiwan

2020 ◽  
Vol 23 (1) ◽  
pp. 1168-1175
Author(s):  
Ming-Chang Li ◽  
Chin-Fu Chou ◽  
Shu-Chen Hsu ◽  
Jen-Shinn Lin
Keyword(s):  
Resistant Starch ◽  
Physicochemical Characteristics

scholarly journals The Effects of Unripe Saba Banana Composite Flour on Acceptance and Physicochemical Characteristics of Biscuits

2021 ◽  
Vol 18 (1) ◽  
pp. 55
Author(s):  
Mariely Ayu Shareenie ◽  
Afham Aisyah Matkhir ◽  
Jahurul Haque Akanda ◽  
Hasmadi Mamat ◽  
Mansoor Abdul Hamid
Keyword(s):  
Resistant Starch ◽  
Physicochemical Characteristics ◽  
Physicochemical Analysis ◽  
Composite Flour ◽  
Good Source ◽  
Sensory Acceptability ◽  
Sensory Acceptance ◽  
Comparison Results ◽  
Banana Flour ◽  
Significant Increment

Biscuits are a popular staple food due to its variety of taste, crispiness and digestibility. Conventional biscuits are rich in carbohydrates, fats and calories but low in dietary fibre (DF), minerals and vitamins. Unripe banana contains high resistant starch (RS) which is beneficial for colon health and helps reduce the risk of cardiovascular diseases and diabetes. This study was conducted to determine the feasibility of substituting wheat flour (WF) with unripe Saba banana flour (USBF) to produce biscuits with sensory acceptance and characterising its physicochemical properties. A total of nine (9) formulations were developed by incorporating WF with USBF (10-90%). These formulations were tested for sensory acceptance with the best formulation then proceeded for physicochemical analysis. Sample F5 (50% USBF and 50% WF) was chosen as the best formulation and compared with the control biscuit (100% WF) for physicochemical characteristics. The comparison results showed that F5 biscuit had significant increment (p<0.05) in ash (5.72%), RS (6.17%) and DF (6.26%) as well as significant reduction (p<0.05) in moisture (2.78%) and protein (5.41%). In terms of texture, the hardness (883.33 g) of F5 biscuit was significantly reduced (p<0.05). F5 Biscuits showed significant increase (p<0.05) in RS and exhibited a good source of DF without diminishing its sensory acceptability.

scholarly journals Karakteristik Fisikokimia Tepung Daluga (Cyrtosperma merkusii. (Hassk.) Schott) Hasil Modifikasi Fermentasi Bakteri Asam Laktat dan Heat Moisture Treatment (HMT)

2019 ◽  
Vol 8 (3) ◽  
pp. 94
Author(s):  
Didah Nur Faridah ◽  
Nestri Purnamasari ◽  
Sri Laksmi Suryaatmaja
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Lactobacillus Plantarum ◽  
Resistant Starch ◽  
Raw Materials ◽  
Physicochemical Characteristics ◽  
Gelatinization Temperature ◽  
Heat Moisture Treatment ◽  
North Sulawesi ◽  
Moisture Treatment

Daluga (Cyrtosperma merkusii. (Hassk.) Schott) adalah salah satu jenis tanaman umbi kaya karbohidrat yang berasal dari Kepulauan Siau, Manado, Sulawesi Utara. Kandungan pati daluga yang tinggi berpotensi sebagai bahan baku pembentukan pati resisten (Resistant starch/RS). Tujuan dari penelitian ini adalah meningkatkan kadar RS tepung daluga melalui modifikasi Heat Moisture Treatment/HMT dan fermentasi Bakteri Asam Laktat/BAL serta mengkaji pengaruh modifikasi terhadap sifat fisikokimia tepung daluga modifikasi. Penelitian terdiri dari 3 perlakuan antara lain HMT menggunakan oven (100 ̊C, 16 jam), autoklaf (121 ̊C, 60 menit), dan kombinasi fermentasi BAL dengan Lactobacillus plantarum BSL dan HMT. Berdasarkan hasil analisis, tepung daluga hasil modifikasi oven, autoklaf, dan Lactobacillus plantarum BSL + HMT memiliki kadar RS masing-masing sebesar 7,14; 8,81; 5,31% (db). Hasil modifikasi tepung daluga juga berpengaruh terhadap kadar serat pangan, amilosa, serta perubahan viskositas dan suhu gelatinisasi. Kesimpulannya, tepung daluga dengan modifikasi HMT dan fermentasi bakteri asam laktat dapat memberikan pengaruh yang bervariasi pada berbagai sifat fisikokimianya.Physicochemical Characteristics of Modified Daluga Flour (Cyrtosperma Merkusii. (Hassk.) Schott) by Lactic Acid Bacteria Fermentation and Heat Moisture TreatmentAbstractDaluga (Cyrtosperma merkusii. (Hassk.) Schott) is one of the tubers originated from the Siau Islands, Manado, and North Sulawesi. The starch contents of daluga which were quite and have the potency as raw materials for starch resistant (SR) formation. The objectives of this research were to increase the SR content of daluga flour, to obtain a modified flour with Lactic Acid Bacteria (LAB) fermentation and Heat Moisture Treatment/HMT of daluga flour and to examine the effect of HMT and LAB fermentation on physicochemical characteristics of daluga flour. The study consist of 3 treatments of HMT, i.e. oven (100°C, 16 hours), autoclave (121° C, 60 minutes), and combination of LAB fermentation by Lactobacillus plantarum BSL and HMT. The result showed the specific value of RS from oven, autoclaves and LAB treatment i.e. 7.14, 8.81, 5.31%, respectively. The results of modified daluga flour could affect dietary fiber, amylose contents, viscosity and gelatinization temperature. As conclusion, modified daluga flour with HMT treatment and fermentation might provide specific result on its physicochemical characteristics.

scholarly journals Structural and Physicochemical Characteristics of Granular Malic Acid-Treated Sweet Potato Starch Containing Heat-Stable Resistant Starch

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Chinwoo Kwon ◽  
Ha Ram Kim ◽  
Tae Wha Moon ◽  
Seung Hyun Lee ◽  
Chang Joo Lee
Keyword(s):  
Sweet Potato ◽  
Malic Acid ◽  
Resistant Starch ◽  
Amylose Content ◽  
Potato Starch ◽  
Physicochemical Characteristics ◽  
Partial Hydrolysis ◽  
Apparent Amylose Content ◽  
Sweet Potato Starch ◽  
Rapid Visco Analyzer

This study investigated the structural and physicochemical characteristics of malic acid-treated sweet potato starch. Sweet potato starch mixed with various concentrations of malic acid solution underwent either thermal or nonthermal treatment. Observation of samples under a light microscope ensured the maintenance of granular shape and the Maltese cross. FT-IR spectra displayed a distinct carbonyl peak at 1722 cm−1, and analysis of the degree of substitution (DS) indicated an increase in the extent of ester bonds with increasing concentrations of malic acid. The DS of 2.0M-130 (0.214) was the highest and that of 0.5M-130 was the lowest (0.088) among the reacted starches. In vitro digestion test revealed an increased amount of resistant starch when a high concentration of malic acid was used. In addition, thermally treated samples maintained a higher content of resistant starch (RS) after 30 min of cooking at 100°C. After cooking, 2.0M-130 had an RS fraction of 53.4% which was reduced to 49.9% after cooking, revealing greater heat stability compared with nonthermally treated samples. The structure of malic acid-treated starch was investigated using a differential scanning calorimeter (DSC), an X-ray diffractometer, a rapid visco analyzer (RVA), and analysis of apparent amylose content. The results showed that thermal and malic acid treatment of starch caused not only partial hydrolysis but also rearrangement of the crystalline area and helix structure of starch by esterification. Analysis of malic acid-treated starch, using a rapid visco analyzer showed no pasting properties, due to lack of its swelling caused by the malic acid cross link.

scholarly journals Physicochemical characteristics of resistant starch prepared from Job’s tears starch using autoclaving–cooling treatment

2021 ◽  
Vol 19 (1) ◽  
pp. 316-325
Author(s):  
Qinghua Yang ◽  
Long Liu ◽  
Xiangdong Li ◽  
Jing Li ◽  
Weili Zhang ◽  
...  
Keyword(s):  
Resistant Starch ◽  
Physicochemical Characteristics ◽  
Job’S Tears

scholarly journals Potato cultivars as a source of starch in Brazil: physicochemical characteristics of the starches and their correlations

2019 ◽  
pp. 1786-1792
Author(s):  
Emerson Loli Garcia ◽  
Ezequiel Lopes do Carmo ◽  
Joaquin Gonçalves de Pádua ◽  
Célia Maria Landi Franco ◽  
Magali Leonel
Keyword(s):  
Resistant Starch ◽  
Cultural Practices ◽  
Amylose Content ◽  
Physicochemical Characteristics ◽  
Industrial Applications ◽  
Potato Tubers ◽  
Starch Retrogradation ◽  
Positive Correlations ◽  
Starch Potato ◽  
Potassium Magnesium

As a source of starch, potato remains unexploited in Brazilian industries, where they typically utilize corn and cassava. Considering the emerging need for using potato as a source of commercial starch, this study evaluated starches extracted from seven cultivars of potatoes with limited commercial usage in Brazil. Potatoes were grown under the same environmental conditions and cultural practices. After harvesting, the potato tubers were processed for the extraction of starch. The proximate composition, amylose content, resistant starch, minerals, as well as pasting and thermal properties of extracted starch samples were analyzed. Starch characteristics varied with the cultivar. Using correlation analysis, we demonstrated that minerals have a robust effect on starch characteristics. Moreover, positive correlations were observed between phosphorus, potassium, magnesium, resistant starch, viscosity peak, breakdown, and gelatinization enthalpy. Calcium had a positive correlation with the amylose content and the percentage of starch retrogradation. Starch samples showed important differences in their physicochemical properties, which are advantageous for industrial applications allowing a larger diversification and incentive to the production of potato for industry in Brazil.

scholarly journals Microstructure and physicochemical characteristics of modified taro starch after annealing, autoclaving-cooling and heat moisture treatment

Food Research ◽  
2020 ◽  
Vol 4 (4) ◽  
pp. 1226-1233
Author(s):  
R.H.B. Setiarto ◽  
H.D. Kusumaningrum ◽  
B.S.L. Jenie ◽  
T. Khusniati ◽  
N. Widhyastuti ◽  
...  
Keyword(s):  
Resistant Starch ◽  
Amylose Content ◽  
Binding Capacity ◽  
Double Helix ◽  
Physicochemical Characteristics ◽  
Pasting Properties ◽  
Water Binding ◽  
Swelling Power ◽  
Heat Moisture Treatment ◽  
Moisture Treatment

This study investigated the effects of annealing, autoclaving-cooling and heat moisture treatment on the microstructure and physicochemical characteristics of taro starch. The taro starch was treated by the annealing process (24 hrs, 50oC), the heat moisture treatment (HMT) (moisture 25%, 3 hrs, 110oC), and the autoclaving (15 mins, 121oC) - cooling (24 hrs, 4oC) with 1 and 2 cycles. The results show that the autoclaving-cooling 2 cycles (AC-2C) changed the microstructure of taro starch into a very compact and dense structure because of formed double helix bound that cannot be hydrolyzed by pancreatic enzymes so it can be converted became resistant starch as the prebiotic source. Pasting properties analysis showed that AC-2C improved shear stress resistance, heat resistance and low retrogradation modified taro starch (MTS). The AC-2C treatment increased water binding capacity (73.84%), solubility (44.58%), and swelling power (16.71%) of MTS. The water-binding capacity had a positive correlation with solubility and swelling power. The AC-2C treatment increased amylose content (27.40%) and decreased reducing sugar level (6.36%) of MTS, so it can encourage the formation of resistant starch to improve the prebiotic properties of taro starch. Modified taro starch AC-2C is the best compared to HMT and annealing based on microstructure and physicochemical characteristics.

scholarly journals Physicochemical properties of tarap (Artocarpus adoratisimus) starch

Food Research ◽  
2019 ◽  
Vol 4 (3) ◽  
pp. 602-611
Author(s):  
Noorfarahzilah M. ◽  
L. Jau-Shya ◽  
A.H. Mansoor ◽  
M.H.A. Jahurul ◽  
M.R. Umi Hartina ◽  
...  
Keyword(s):  
Resistant Starch ◽  
Physicochemical Characteristics ◽  
Industrial Applications ◽  
Pasting Properties ◽  
In Vitro Digestibility ◽  
Starch Granules ◽  
Good Potential ◽  
Total Starch ◽  
Granule Diameter

The objective of the research was to investigate the physicochemical characteristics of Tarap fruit starch. In this study, young Tarap fruit starch was extracted and the percentage of total starch, resistant starch, amylose and amylopectin were determined. Scanning electron microscope was used to evaluate the morphological features of the starch granule. Swelling, pasting, gelatinization, retrogradation and in vitro digestibility were also investigated. A total of 17.85% starch was successfully extracted from unripe Tarap fruit, whereas the amount of total starch and resistant starch were 89.14% and 47.82%, respectively. The amounts of rapid digestible starch and slowly digestible starch were 6.58% and 23.25%, respectively. Results found that the amylopectin content was higher than amylose (77.15% and 11.97%). The starch granules were round and polygon in shapes with smooth surfaces. The average of starch granules size was range from 6.50 to 8.30 μm with 7.4 μm of mean granule diameter. Pasting properties showed that peak viscosity was observed at about 6.5 min at 73.5oC. Tarap starch gelatinization temperatures (onset, 71.63°C; peak, 74.56°C; conclusion, 78.24°C) and enthalpy of gelatinization (ΔHgel) (3.74 J/g) were higher while the retrograded starches show lower retrogradation temperature and enthalpy than native starches. Unripe Tarap starch showed good potential to be utilized as adhesives and thickener for industrial applications.

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