– Amino Acids
– Antibiotics
– Antioxidants
– Contaminants
– Dioxins & PCBs
– Fatty Acid
– Fiber
– Food Colorants
– Food Preservatives
– GMO & Molecular Biology
– Heavy Metal
– Microbiology
– Mineral & Other Elements
– Mycotoxins
– Organic Acids
– Pesticides Residues
– Proximate Analysis
– Shelf Life Test
– Solvent Residues
– Sugar & Sweeteners
– Vitamins
Antioxidants are substances that can prevent or slow damage to cells caused by free radicals. Polyphenols are commonly found in food as natural antioxidants. Synthetic phenolic antioxidants are also added such as BHA (butylated hydroxyanisole), BHT (butylated hydroxytoluene), and TBHQ (tert-butylhydroquinone). Synthetic phenolic antioxidants are used in food systems for the prevention of lipid oxidation during processing and storage. This oxidation is responsible for the production of volatile compounds forming unpleasant flavors, so food and beverage companies need to test the antioxidants in their products and ensure consumer safety
How SIG can Help
SIG laboratory can perform analysis of the antioxidant and simultaneous testing for the analysis of the BHA, BHT and TBHQ antioxidants.
The types of antioxidants that can be tested in the SIG laboratory are:
- Tanine
- Caffeine
- Polyphenol
- Carotene
- Beta Carotene
- Isoflavone
- Ascorbyl Palmitate
- Antioxidant Activity
- Butylated Hydroxyanisole (BHA)
- Butylated Hydroxytoluene (BHT)
- Tertbutyl hydroquinone (TBHQ)
Method of Analysis

Analysis of antioxidants are performed by different methods including spectrophotometer and HPLC PDA
Library of Knowledge
SIG Addresses Industrial Water Safety Challenges through ISO-Standardized Microbial Testing at the NgoMik! #17 Collaborative Webinar
Bogor, September 3, 2026 – Bogor, September 3, 2026. As part of its efforts to introduce the latest methods for microbiological water testing to laboratory practitioners in Indonesia, SIG joined Prolabios Mitra Analitika and the Center for Public Health Laboratory (BB...
SIG Holds Audience with BPDP, Pushes for Synergy to Strengthen Competitiveness of Indonesia’s Palm Oil Industry
Jakarta, September 2, 2026 - SIG held an audience with the Plantation Fund Management Agency (Badan Pengelola Dana Perkebunan/BPDP). The meeting served as a momentum for SIG to introduce its laboratory capabilities in supporting the strengthening of the plantation...
Reading Life Through DNA
Discover Environmental Biodiversity Through eDNA SIG now offers Environmental DNA (eDNA) Analysis powered by genomics technology to help identify biological traces present in the environment. “What lives in this environment? Now, SIG can read it through DNA.” Body...
SIG Laboratory
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Phone. +62 251 7532 348
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Email. cs.sigsmg@saraswanti.com
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Email. arifin.sig@saraswanti.com
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