The Application of SNQ Questionnaires for SME workers: A case study of a tofu SME in Medan

Ginting, Rosnani; Tarigan, Ukurta; Ginting, Terang Ukur Hs.; Malik, Alfin Fauzi

doi:10.1088/1757-899x/505/1/012147

Cited by 2 publications

(3 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The existing of those groups had represented the content of avocado seed starch which is consisted of amylose and amylopectin and reducing glucose (C6H10O5)n [32]. This result showed the same result with Ginting and Tarigan [20] of functional group analysis of avocado seed starch.…”

Section: Resultssupporting

confidence: 57%

See 1 more Smart Citation

http://www.asianjournalofchemistry.co.in/user/ViewFreeArticle.aspx?ArticleID=30_5_23

Sartika¹,

Lubis²,

Harahap³

et al. 2018

Asian J. Chem.

View full text Add to dashboard Cite

The mechanical properties of bioplastic prepared from avocado seed starch and mycrocrystalline cellulose from sugar palm fibers as filler using Schweizer's reagent as solvent was studied. Bioplastics were prepared from avocado seed starch and reinforced with microcrystalline cellulose (MCC) from sugar palm fibers with composition ratio were 7:3, 8:2 and 9:1 (w/w) and using glycerol as plasticizer with variation of 0.1; 0.2; 0.3 and 0.4 (v/w of starch). Microcrystalline cellulose dissolved in the copper solution (Schweizer reagent) with ratio of MCC:copper solution is 1:10. Degree of crystallinity of microcrystalline cellulose was 97.5 %. Morphologycal analysis showed that the isolated microcrystalline cellulose from sugar palm fibers are rod-like shape with diameter of 5.55-9.44 µm and crystallite size of 25.08 nm. Mechanical properties of bioplastic showed that the best condition of bioplastics obtained at comparison of mass starchmicrocrystalline cellulose 7:3 and the addition of glycerol 0.1 (v/w) for tensile strength 20.874 MPa and elongation at break of 6.22 %.

show abstract

Section: Resultssupporting

confidence: 57%

“…Characterization of avocado seed starch was aimed to know the percentage of each component contained in the starch produced, include starch, amylose, amylopectin, water, ash and protein content so that the quality of starch produced is known [8,20]. The result of avocado seed starch characteristic was given in Table-1.…”

Section: Resultsmentioning

confidence: 99%

http://www.asianjournalofchemistry.co.in/user/ViewFreeArticle.aspx?ArticleID=30_5_23

Sartika¹,

Lubis²,

Harahap³

et al. 2018

Asian J. Chem.

View full text Add to dashboard Cite

show abstract

“…Manufacture bioplastic: The starch and chitosan mass were weighed at a ratio of 7:3 [17]. Heat a mixture of starch solution (starch: aquades = 1:20) and chitosan solution (chitosan/acetic acid 1 % v 3: 130 w/v) in 500 mL beaker glass using hot plate magnetic stirrer at varied temperature (70, 80 and 90 °C) [12].…”

Section: Methodsmentioning

confidence: 99%

Utilization of Avocado Seeds as Bioplastic Films Filler Chitosan and Ethylene Glycol Plasticizer

Ginting¹,

Hasibuan²,

Lubis³

et al. 2018

Asian J. Chem.

View full text Add to dashboard Cite

The use of packaging plastics each year has increased [1], potentially producing waste that is difficult to biodegradable [2], so needed environmentally friendly plastic material (bioplastic). The research of bioplastic film usually using cellulose, protein and starch materials [3,4]. The study on starch-based bioplastic film is growing rapidly because starch is easy to obtaining and processing [5]. Research on starchbased bioplastic film has been done, including using sweet potato, rice, potato and sago [6-9]. Starch-based bioplastic films such as starch from cassava, rice and potatoes should be avoided because they interfere with food security [10], for it needs to be studied starch from unuseful grains. Study on starch-based bioplastic film from seed waste has been done such as using durian seed, jackfruit seed and others, Generally durian seed starch and jackfruit seeds have high amylose content that can be used as bioplastic materials [5,11]. Lubis et al. [11] reported that bioplastic from jackfruit seed has high tensile strength with 70.22 % starch and 16.39 % amylose. This work using avocado starch because it is content starch 73.62 % and amylopectin 73.55 % so that avocado seed has potential to be plastic film material. Manufacturing this plastic film using casting method, heating the mixture of starch-filler solution at temperature approaching gelatinization [12], starchbased bioplastics have been weaknesses among others are hydrophilic, less hydrophobic and low mechanical properties, so it is necessary to additing microcrystalline cellulose fillers,

show abstract

The Application of SNQ Questionnaires for SME workers: A case study of a tofu SME in Medan

Cited by 2 publications

References 8 publications

http://www.asianjournalofchemistry.co.in/user/ViewFreeArticle.aspx?ArticleID=30_5_23

http://www.asianjournalofchemistry.co.in/user/ViewFreeArticle.aspx?ArticleID=30_5_23

Utilization of Avocado Seeds as Bioplastic Films Filler Chitosan and Ethylene Glycol Plasticizer

Contact Info

Product

Resources

About